DIMETHICONE 1000
DIMETHICONE 1000
Dimethicone 1000 is a moderately viscous oil, 1000 centistokes in viscosity
100% active, 1000 cSt, polydimethylsiloxane polymer. INCI Name: Dimethicone
Dimethicone 1000 fluid is a medium viscosity Dimethyl Polysiloxane used used in a variety of Personal Care and Industrial applications.
Dimethicone 1000 adds silky softness to hair formulations, improves spreadability and provides lubricity in lotions, is non-sticky, long-lasting, and improves water repellency.
Dimethicone 1000 is recommended for hair care, skin care, and cosmetic products. Dimethicone 1000 has a viscosity of 1000 at 25ºC.
Dimethicones for personal care are non-reactive polydimethyl siloxanes.
Linear Siloxanes in hair care provide water resistance and improved spreading of actives without weighing the hair down, even at high molecular weights due to the low surface tension of silicones.
Dimethylpolysiloxane
Poly(dimethylsiloxane)
PDMS 1000 viscosity
Silicone oil 1000
DIMETHICONE
Dimethicone is one of the most common ingredients in cosmetics. It acts as an anti-foaming agent, skin protectant and skin & hair conditioner. It prevents water loss by forming a hydrating barrier on the skin. It is used in a wide range of cosmetics products including creams and lotions, bath soaps, shampoo and hair care products. The FDA approved dimethicone for personal care products, and it is generally considered to be safe to use.
DIMETHICONE is classified as :
Antifoaming
Emollient
Skin conditioning
Skin protecting
CAS Number 63148-62-9 / 9006-65-9 / 9016-00-6
EINECS/ELINCS No: – / – / – /
COSING REF No: 33401
INN Name: dimeticone
PHARMACEUTICAL EUROPEAN NAME: dimeticonum
Chem/IUPAC Name: Polydimethylsiloxane
COMPOSITION:
Polydimethylsiloxane, INCI Name: Dimethicone, CAS Number: 63148-62-9
Polydimethylsiloxane 1000 cSt, is commonly used as a base fluid in topical formulation on account of its lubricity, ease of spreading, smooth feel, emolliency and reduced tackiness.
These silicone fluids are used in various skin contact applications like personal lubrication, dermatological formulations, and consumer healthcare applications.
Clear, Spreadability, Water repellent, Non-occlusive, Emollient, Smooth feel, Lubricity
Uses:
Dimethicone 1000 is active ingredient in a variety of automotive, furniture, metal and specialty polishes in paste, emulsion and solvent-based polishes and aerosols
Various applications of Dimethicone 1000 include cosmetic ingredient, elastomer and plastics lubricant, electrical insulating fluid, foam preventive or breaker, mechanical fluid, mold release agent, surface active agent, and solvent-based finishing and fat liquoring of leather
Dimethicone 1000 is a medium viscosity, light silicone oil, derived from sand and quartz.
Though Dimethicone is a light silicone it is not water soluble and should be used sparingly in rinse off hair care products and not, at all, in leave in hair products.
Dimethicone 1000 acts also as a protecting agent.
Dimethicone 1000 is polydimethylsiloxane or silicone oil, offers medium thick viscosity and excellent barrier properties.
Dimethicone 1000 adds slip & glide, reduces tackiness and provides conditioning properties.
Dimethicone 1000 finds application in formulating hair- and skin care products.
Dimethicone 1000 is a linear, non-reactive, unmodified polydimethylsiloxane.
Dimethicone 1000 is characterized by low surface tension and a high spreading coefficient.
Due to their flexible polymer backbone, Dimethicone 1000 has high permeability to gases (e.g. water vapor, oxygen), which allows respiration of the skin.
Application: Dimethicone 1000 is used in a broad range of personal care formulations as an emollient.
Dimethicone 1000 allows formulators to adjust spreadability and conditioning effects. Whitening and stickiness of cosmetic products can be reduced and skin feel can be optimized.
Dimethicone 1000 is a form of silicone used to give products lubricity, slip, and good feel.
Dimethicone 1000 can also serve as a formulation defoamer and help reduce the feeling of greasiness that some creams leave on the skin immediately upon application. In addition, dimethicone is reported to protect the skin against moisture loss when used in larger quantities.
It improves product flow and spreadability. In combination with other ingredients, dimethicone becomes a good waterproofing material for sunscreen emulsions, and helps reduce the greasiness often seen in high-SPF preparations.
Dimethicone 1000 is a linear, non-reactive, unmodified polydimethylsiloxane.
Dimethicone 1000 is characterized by low surface tension and a high spreading coefficient. Due to their flexible polymer backbone, dimethicones have high permeability to gases (e.g. water vapor, oxygen), which allows respiration of the skin.
Application: Dimethicone 1000 is used in a broad range of personal care formulations as an emollient.
Dimethicone 1000 allows formulators to adjust spreadability and conditioning effects. Whitening and stickiness of cosmetic products can be reduced and skin feel can be optimized.
Dimethicone,included at even small amounts, is known as one of the best ingredients to provide a hydrophobic barrier to the skin where it can assist in slowing the skin’s moisture loss to improve hydration and moisture.
Dimethicone is commonly used to improve the slip and glide of bath and body products which provides an easy solution for heavier, tacky creams and lotions. Also a great addition to anhydrous products to reduce greasiness and improve flow.
Dimethicone imparts softness, lubricity and emolliency to formulations as it reduces whitening, soaping and tack during rub-in.
SILICONE OIL 1000 cPs/cSt
Dimethicone 1000
A high quality of silicone oil which is clear, water- white, tasteless, odorless and neutral liquid. Its viscosity shows very little change with temperature variation. It exhibits minimum of change among all types of silicone fluids. Outstanding resistance to high and low temperature extremes, maintenance of flexibility over a wide temperature range are its unique properties.
It shows high resistance to breakdown by mechanical shearing. The low change in viscosity with temperature and excellent heat and cold resistance makes it an ideal lubricant. It is, therefore, widely used in gear wheels, bearings and brushes. It exhibits excellent dielectric properties, which are maintained for prolonged periods of time even under varying operating conditions.
Properties and features of silicone oil 1000
Chemically Inert
Good dielectric characteristics
Excellent High & Low Thermal Stability
High Water Repellency
Low surface tension
Low pour point
Excellent Lubrication
Non-Flammable
High Resistance to Oxidation
High Resistance to Shear
Low surface tension
Low viscosity-tempertaure change
Wide service temperature range –40C to 170C (for open systems), –40C to 230C (for closed systems).
Uses of silicone oil 1000:
Heat & mechanical transfer media
Hydraulic fluids
Liquid dielectric for electrical and electronic
Water repellents
Polishes
Antifriction agents
Lubricants
Antifoams
Mould release agents
Automotive care, Paint
Sewing thread lubricant & textile spin finish
Other uses include High Damping Action Fluid, Dielectric Fluid, Lubricant for Rubber and plastics, O-Ring Lubricant, Valve and Gasket lubricant.
Chemical Properties of Silicone 1000:
Formula: (-Si(CH3)2O-)n
CAS No: 63148–62–9
Viscosity: 1000 centistokes
Pour Point: –47 oC (closed cup)
Flash Point: 314 oC (open cup)
Ignition temperature: > approx 450 oC
Density: 0.97 g/cm3 at 20oC
Surface tension: 21.3 dynes/cm @25C
Refractive index: 1.4
Thermal expansion cc/cc C: 0.00096
Dielectric Constant 50Hz: 2.75
Dielectric Strength volt/mil: 400
Thermal Conductivity g/cal/cs/sec C: 0.00038
SPECIFICATIONS
Appearance: Clear to Hazy* Slightly Viscous Liquid Gel
Odor: Characteristic
Solubility: Oil Miscible
Storage: Tightly Sealed / Protected from Heat, Cold, Air, Direct Sun
Shelf: 24mos. when Properly Stored / Handled
* Clarity will vary with temperature
GUIDELINES
Add to Oil Phase or at Cool Down
Usage Rate: 0.5% to 5.0%
Dimethicone 1000 is a colourless silicone fluid widely used as an emollient in skin and haircare products.
Dimethicone 1000 has the ability to ‘trap’ moisture in the skin (or hair shaft) so is extremely useful in skin creams/lotions, hair shampoos/conditioners. Gives hair a ‘silky’ feel.
Dimethicone 1000 is a widely preferred version for many personal care products.
Dimethicone 1000 is a medium viscosity, light silicone oil, derived from sand and quartz.
This oil-soluble silicone is an excellent cosmetic ingredient for skin care and hair care applications, with a wide variety of uses.
Dimethicone 1000 offers natural lubrication, adding more slip and glide to cosmetics, reducing tackiness on the skin and a sticky feeling in hair, improving hair’s softness and reduces fizziness even in high humidity.
Dimethicone 1000 provides a hydrophobic, protective but, breathable barrier to the skin
As Dimethicone 1000 possesses natural emolliency, it is an excellent addition to cosmetics such as conditioners, lotions and moisturisers as well as other leave-on and rinse-off applications. Dimethicone 1000 has a thicker viscosity than Dimethicone 350.
Both are often added at the oil phase of a cosmetic formulation.
Dimethicone 1000 can be used as a pressing medium for pressed eyeshadows, blushers and foundations.
Uses for both Dimethicones 1000 include (but are not limited to):
Lotions
Creams
Moisturisers
Shampoos
Hair Care Products
Mascara
Lipstick and Lip gloss
Pressing medium for makeup
Massage
Bath Products
Usage rate: 1 – 30%
INCI: Dimethicone
Applications
• Skin Care
• Make-up Foundation
• Sun Care
• Eye Make-up
• Make-up
• Lip Make-up
Polydimethylsiloxane (PDMS) belongs to a group of polymeric organosilicon compounds that are commonly referred to as silicones. PDMS is the most widely used silicon-based organic polymer, and is particularly known for its unusual rheological (or flow) properties. Its applications range from contact lenses and medical devices to elastomers; it is present, also, in shampoos (as dimethicone makes hair shiny and slippery), caulking, lubricating oils, and heat-resistant tiles.
PDMS is optically clear, and, in general, is considered to be inert, non-toxic and non-flammable.
It is occasionally called dimethicone and is one of several types of silicone oil (polymerized siloxane)
The low-viscosity silicone fluid acts as a lubricant to make polish application and rubout easier, whereas the high-viscosity silicone fluid produces a greater depth of gloss.
Since these polymers are inherently water-repellent, they will cause water to bead up on a treated surface rather than penetrate the polish film.
Dimethicone, or Silicone Oil, is a very useful emollient, skin protectant and waterproofing material.
This product is a moderately viscous oil, 1000 centistokes in viscosity. If you require a thicker, higher viscocity product, then please Contact Us as we have many other viscosities available.
Dimethicone adds slip, smoothness and glide to skincare and haircare products of all types.
Dimethicone is a very versatile ingredient and uses include;
Skincare
Handcreams, facail moisturisers, cream cleansers, exfoliants, body lotions and masques
Barrier Creams
Ideal for “invisible glove” Barrier Creams and lotions – us 5 – 15% depending on the level of protection required
Hair Care
May be emulsified into Cream Shampoos, conditioners and hair styling products
Waterproofing
May be applied to hard surfaces to repel water, dirt and mud
Anti-foam
Breaks down detergent foam
Silly Putty
Dimethicone gives silly putty is elasticity and bounce
Hydrophobic sand
Dimethicone is used to coat Hydrophobic sand and give its dramatic properties
Key Features and Typical Benefits of Dimethicone 1000
Silicones differ from organic compounds in both their physical and chemical properties.
high and low temperature stability
oxidative stability
chemically inert
low flammability
low surface tension
shear stability
high compressibility
low vapor pressure
low odor
soft, smooth silky feel
non-oily feel
spreadability
low coefficient of friction
lubricious
Dimethicone 1000 medium viscosity oils may be considered for use in several industrial and consumer applications :
heat and mechanical transfer fluid
hydraulic fluid electrical insulating fluid
water repellent
polish ingredient
mold release agent
lubricant
anti-foam
personal care ingredient
textile spin finishes
paints and coatings additive
Benefits:
Ease of application and rubout
Ease of buffing
Enhances color
High water repellency
High compressibility
High shearability without breakdown
High spreadability and compatibility
Low environmental hazard
Low fire hazard
Low reactivity and vapor pressure
Low surface energy
Good heat stability
Essentially odorless, tasteless and nontoxic
Soluble in a wide range of solvents For personal care applications
Imparts soft, velvety skin feel
Spreads easily on both skin and hair
De-soaping (prevents foaming during rubout) For industrial applications
High dielectric strength
High damping action
Oxidation-, chemical- and weather-resistant
Does not contain ingredients of animal origin (Suitable for Vegan)
Polydimethylsiloxane (PDMS), also known as dimethylpolysiloxane or dimethicone, belongs to a group of polymeric organosilicon compounds that are commonly referred to as silicones.
PDMS is the most widely used silicon-based organic polymer due to its versatility and properties leading to many applications.
It is particularly known for its unusual rheological (or flow) properties.
PDMS is optically clear and, in general, inert, non-toxic, and non-flammable.
It is one of several types of silicone oil (polymerized siloxane).
Its applications range from contact lenses and medical devices to elastomers; it is also present in shampoos (as it makes hair shiny and slippery), food (antifoaming agent), caulking, lubricants and heat-resistant tiles.
Structure
The chemical formula for PDMS is CH3[Si(CH3)2O]nSi(CH3)3, where n is the number of repeating monomer [SiO(CH3)2] units.
Industrial synthesis can begin from dimethyldichlorosilane and water by the following net reaction:
The polymerization reaction evolves hydrochloric acid.
For medical and domestic applications, a process was developed in which the chlorine atoms in the silane precursor were replaced with acetate groups.
In this case, the polymerization produces acetic acid, which is less chemically aggressive than HCl. As a side-effect, the curing process is also much slower in this case. The acetate is used in consumer applications, such as silicone caulk and adhesives.
Branching and capping
Hydrolysis of Si(CH3)2Cl2 generates a polymer that is terminated with silanol groups (−Si(CH3)2OH]).
These reactive centers are typically “capped” by reaction with trimethylsilyl chloride:
2 Si(CH3)3Cl + [Si(CH3)2O]n−2[Si(CH3)2OH]2 → [Si(CH3)2O]n−2[Si(CH3)2O Si(CH3)3]2 + 2 HCl
Silane precursors with more acid-forming groups and fewer methyl groups, such as methyltrichlorosilane, can be used to introduce branches or cross-links in the polymer chain.
Under ideal conditions, each molecule of such a compound becomes a branch point.
This can be used to produce hard silicone resins. In a similar manner, precursors with three methyl groups can be used to limit molecular weight, since each such molecule has only one reactive site and so forms the end of a siloxane chain.
Well-defined PDMS with a low polydispersity index and high homogeneity is produced by controlled anionic ring-opening polymerization of hexamethylcyclotrisiloxane.
Using this methodology it is possible to synthesize linear block copolymers, heteroarm star-shaped block copolymers and many other macromolecular architectures.
The polymer is manufactured in multiple viscosities, ranging from a thin pourable liquid (when n is very low), to a thick rubbery semi-solid (when n is very high).
PDMS molecules have quite flexible polymer backbones (or chains) due to their siloxane linkages, which are analogous to the ether linkages used to impart rubberiness to polyurethanes.
Such flexible chains become loosely entangled when molecular weight is high, which results in PDMS’ unusually high level of viscoelasticity.
Mechanical properties
PDMS is viscoelastic, meaning that at long flow times (or high temperatures), it acts like a viscous liquid, similar to honey.
However, at short flow times (or low temperatures), it acts like an elastic solid, similar to rubber.
Viscoelasticity is a form of nonlinear elasticity that is common amongst noncrystalline polymers.
The loading and unloading of a stress-strain curve for PDMS do not coincide; rather, the amount of stress will vary based on the degree of strain, and the general rule is that increasing strain will result in greater stiffness.
When the load itself is removed, the strain is slowly recovered (rather than instantaneously).
This time-dependent elastic deformation results from the long-chains of the polymer.
But the process that is described above is only relevant when cross-linking is present; when it is not, the polymer PDMS cannot shift back to the original state even when the load is removed, resulting in a permanent deformation.
However, permanent deformation is rarely seen in PDMS, since it is almost always cured with a cross-linking agent.
If some PDMS is left on a surface overnight (long flow time), it will flow to cover the surface and mold to any surface imperfections.
However, if the same PDMS is poured into a spherical mold and allowed to cure (short flow time), it will bounce like a rubber ball.
The mechanical properties of PDMS enable this polymer to conform to a diverse variety of surfaces.
Since these properties are affected by a variety of factors, this unique polymer is relatively easy to tune.
This enables PDMS to become a good substrate that can easily be integrated into a variety of microfluidic and microelectromechanical systems.
Specifically, the determination of mechanical properties can be decided before PDMS is cured; the uncured version allows the user to capitalize on myriad opportunities for achieving a desirable elastomer.
Generally, the cross-linked cured version of PDMS resembles rubber in a solidified form.
It is widely known to be easily stretched, bent, compressed in all directions.
Depending on the application and field, the user is able to tune the properties based on what is demanded.
Fabric embedded within PDMS.
This technique enables a user to retain a thin layer of PDMS as a substrate while achieving a higher stiffness through the insertion of reinforcement.
Linear relationship in Sylgard 184 PDMS between curing temperature and Young’s modulus
Overall PDMS has a low elastic modulus which enables it to be easily deformed and results in the behavior of a rubber.
Viscoelastic properties of PDMS can be more precisely measured using dynamic mechanical analysis.
This method requires determination of the material’s flow characteristics over a wide range of temperatures, flow rates, and deformations.
Because of PDMS’s chemical stability, it is often used as a calibration fluid for this type of experiment.
The shear modulus of PDMS varies with preparation conditions, and consequently dramatically varies in the range of 100 kPa to 3 MPa.
The loss tangent is very low (tan δ ≪ 0.001).
Chemical compatibility
PDMS is hydrophobic.[7] Plasma oxidation can be used to alter the surface chemistry, adding silanol (SiOH) groups to the surface.
Atmospheric air plasma and argon plasma will work for this application.
This treatment renders the PDMS surface hydrophilic, allowing water to wet it.
The oxidized surface can be further functionalized by reaction with trichlorosilanes.
After a certain amount of time, recovery of the surface’s hydrophobicity is inevitable, regardless of whether the surrounding medium is vacuum, air, or water; the oxidized surface is stable in air for about 30 minutes.
Alternatively, for applications where long-term hydrophilicity is a requirement, techniques such as hydrophilic polymer grafting, surface nanostructuring, and dynamic surface modification with embedded surfactants can be of use.
Solid PDMS samples (whether surface-oxidized or not) will not allow aqueous solvents to infiltrate and swell the material.
Thus PDMS structures can be used in combination with water and alcohol solvents without material deformation.
However most organic solvents will diffuse into the material and cause it to swell.
Despite this, some organic solvents lead to sufficiently small swelling that they can be used with PDMS, for instance within the channels of PDMS microfluidic devices.
The swelling ratio is roughly inversely related to the solubility parameter of the solvent.
Diisopropylamine swells PDMS to the greatest extent; solvents such as chloroform, ether, and THF swell the material to a large extent.
Solvents such as acetone, 1-propanol, and pyridine swell the material to a small extent.
Alcohols and polar solvents such as methanol, glycerol and water do not swell the material appreciably.
Applications
Surfactants and antifoaming agents
PDMS is a common surfactant and is a component of defoamers.
PDMS, in a modified form, is used as an herbicide penetrant and is a critical ingredient in water-repelling coatings, such as Rain-X.
Hydraulic fluids and related applications
Dimethicone is also the active silicone fluid in automotive viscous limited slip differentials and couplings.
This is usually a non-serviceable OEM component but can be replaced with mixed performance results due to variances in effectiveness caused by refill weights or non-standard pressurizations.
Soft lithography
PDMS is commonly used as a stamp resin in the procedure of soft lithography, making it one of the most common materials used for flow delivery in microfluidics chips.
The process of soft lithography consists of creating an elastic stamp, which enables the transfer of patterns of only a few nanometers in size onto glass, silicon or polymer surfaces.
With this type of technique, it is possible to produce devices that can be used in the areas of optic telecommunications or biomedical research. The stamp is produced from the normal techniques of photolithography or electron-beam lithography. The resolution depends on the mask used and can reach 6 nm.[19]
In biomedical (or biological) microelectromechanical systems (bio-MEMS), soft lithography is used extensively for microfluidics in both organic and inorganic contexts.
Silicon wafers are used to design channels, and PDMS is then poured over these wafers and left to harden.
When removed, even the smallest of details is left imprinted in the PDMS.
With this particular PDMS block, hydrophilic surface modification is conducted using plasma etching techniques.
Plasma treatment disrupts surface silicon-oxygen bonds, and a plasma-treated glass slide is usually placed on the activated side of the PDMS (the plasma-treated, now hydrophilic side with imprints). Once activation wears off and bonds begin to reform, silicon-oxygen bonds are formed between the surface atoms of the glass and the surface atoms of the PDMS, and the slide becomes permanently sealed to the PDMS, thus creating a waterproof channel.
With these devices, researchers can utilize various surface chemistry techniques for different functions creating unique lab-on-a-chip devices for rapid parallel testing.
PDMS can be cross-linked into networks and is a commonly used system for studying the elasticity of polymer networks.
PDMS can be directly patterned by surface-charge lithography.
PDMS is being used in the making of synthetic gecko adhesion dry adhesive materials, to date only in laboratory test quantities.
Some flexible electronics researchers use PDMS because of its low cost, easy fabrication, flexibility, and optical transparency.
Stereo lithography
In stereo lithography (SLA) 3D printing, light is projected onto photocuring resin to selectively cure it.
Some types of SLA printer are cured from the bottom of the tank of resin and therefore require the growing model to be peeled away from the base in order for each printed layer to be supplied with a fresh film of uncured resin.
A PDMS layer at the bottom of the tank assists this process by absorbing oxygen : the presence of oxygen adjacent to the resin prevents it adhering to the PDMS, and the optically clear PDMS permits the projected image to pass through to the resin undistorted.
Medicine and cosmetics
Activated dimethicone, a mixture of polydimethylsiloxanes and silicon dioxide (sometimes called simethicone), is often used in over-the-counter drugs as an antifoaming agent and carminative.
It has also been at least proposed for use in contact lenses.
Silicone breast implants are made out of a PDMS elastomer shell, to which fumed amorphous silica is added, encasing PDMS gel or saline solution.
In addition, PDMS is useful as a lice or flea treatment because of its ability to trap insects
It also works as a moisturizer that is lighter and more breathable than typical oils.
Skin
PDMS is used variously in the cosmetic and consumer product industry as well.
For example, PDMS can be used in the treatment of head lice on the scalp and dimethicone is used widely in skin-moisturizing lotions where it is listed as an active ingredient whose purpose is “skin protection.”
Some cosmetic formulations use dimethicone and related siloxane polymers in concentrations of use up to 15%.
The Cosmetic Ingredient Review’s (CIR) Expert Panel, has concluded that dimethicone and related polymers are “safe as used in cosmetic formulations.”
Hair
PDMS compounds such as amodimethicone, are effective conditioners when formulated to consist of small particles and be soluble in water or alcohol/act as surfactants (especially for damaged hair), and are even more conditioning to the hair than common dimethicone and/or dimethicone copolyols.
Contact Lenses
A proposed use of PDMS is contact lens cleaning.
Its physical properties of low elastic modulus and hydrophobicity have been used to clean micro and nano pollutants from contact lens surfaces more effectively than multipurpose solution and finger rubbing; the researchers involved call the technique PoPPR (polymer on polymer pollution removal) and note that it is highly effective at removing nanoplastic that has adhered to lenses.
Flea treatment for pets
Dimethicone is the active ingredient in a liquid applied to the back of the neck of a cat or dog from a small one time use dose disposable pipette.
The parasite becomes trapped and immoblised in the substance and thus breaks the life cycle of the insect.
Foods
PDMS is added to many cooking oils (as an antifoaming agent) to prevent oil splatter during the cooking process.
As a result of this, PDMS can be found in trace quantities in many fast food items such as McDonald’s Chicken McNuggets, french fries, hash browns, milkshakes and smoothies and Wendy’s french fries.
Under European food additive regulations, it is listed as E900.
Condom lubricant
PDMS is widely used as a condom lubricant.
Chromatography column coating
Its apolarity and its chemical properties make it widely used as a coating material for Gas Chromatography columns, such as the HP-5ms, Scion-5ms, etc. (95% dimethylpolysiloxane), or Scion-1ms, HP-5ms, etc. (100% Dimethylpolysiloxane).
Being highly inert, it doesn’t react with chemicals passing through the column, allowing for a good separation of products, through their polarity differences.
It allows for a good separation of polar and non polar products from one another.
Domestic and niche uses
Many people are indirectly familiar with PDMS because it is an important component in Silly Putty, to which PDMS imparts its characteristic viscoelastic properties.
Another toy PDMS is used in is Kinetic Sand.
The rubbery, vinegary-smelling silicone caulks, adhesives, and aquarium sealants are also well-known.
PDMS is also used as a component in silicone grease and other silicone based lubricants, as well as in defoaming agents, mold release agents, damping fluids, heat transfer fluids, polishes, cosmetics, hair conditioners and other applications.
PDMS has also been used as a filler fluid in breast implants.
It can be used as a sorbent for the analysis of headspace (dissolved gas analysis) of food.
Safety and environmental considerations
According to Ullmann’s Encyclopedia, no “marked harmful effects on organisms in the environment” have been noted for siloxanes.
PDMS is nonbiodegradable, but is absorbed in waste water treatment facilities. Its degradation is catalyzed by various clays.
PDMS is biocompatible, and its used in microfluidic device manufacturing because of that.
Skin Care Applications
Antiperspirant / Deodorant
Cleansers
Creams
Color Cosmetics
Lotions
Serums
Sun Care
Benefits
Cushion
Film Forming Properties
Lubrication
Moisturizing
Skin Protectant
Spreadability
Suitable for Clear Formulations
Tack Reduction
Wash Off Resistance
Water Repellency
Hair Care Applications
Shampoo
Conditioner (leave in)
Conditioner (rinse off)
Styling Treatment
Benefits
Active Carrier
Anti Frizz
Conditioning
For Dry / Damaged Hair
Improves Dry Combing
Improves Wet Combing
Improves Texture
Light Residue / Low Build Up
Soft / Supple Feel
BELSIL DM 1000 is a linear, non-reactive, unmodified polydimethylsiloxane.
BELSIL DM 1000 is characterized by low surface tension and a high spreading coefficient.
Due to their flexible polymer backbone, dimethicones have high permeability to gases (e.g. water vapor, oxygen), which allows respiration of the skin.
Application: BELSIL DM 1000 is used in a broad range of personal care formulations as an emollient.
It allows formulators to adjust spreadability and conditioning effects.
Whitening and stickiness of cosmetic products can be reduced and skin feel can be optimized.
INCI name: Dimethicone
Silicone (dimethicone) ointments are excellent water-protective agents because they have an extremely low surface tension and penetrate crevices in the skin to form a plastic-like barrier. Further, they are nontoxic, inert, stable, and water repellent.
As such, they are useful as barrier creams in industry or wherever constant or frequent exposure to aqueous compounds is a problem.
They will not, however, protect well against solvents, oils, or dusts.
Dimethicones of various viscosities are widely used in cosmetic and pharmaceutical formulations.
In topical oil-in-water emulsions dimethicone is added to the oil phase as an antifoaming agent.
Dimethicone is hydrophobic and is also widely used in topical barrier preparations.
Therapeutically, dimethicone may be used with simethicone in oral pharmaceutical formulations used in the treatment of flatulence.
Dimethicone is also used to form a waterrepellent film on glass containers.
Belsil DM 1000
DC 1664
Dimethicone
Dimethicone 350
Dimethicones
Dimethyl polysiloxane, bis(trimethylsilyl)-terminated
Dimethyl polysiloxane, dimethyl-terminated
Dimethylpolysiloxane
Dimeticona
Dimeticone
Dimeticonum
Dow Corning 1664
Mirasil DM 20
Ophtasiloxane
Poly(dimethylsiloxane)
Poly(oxy(dimethylsilylene)), alpha-(trimethylsilyl)-omega-methyl-
Polysilane
Viscasil 5M
Dimethyl silicone is also known as methyl silicone oil and polydimethylsiloxane liquid.
It appears as colorless transparent viscous liquid, being tasteless, odorless and non-toxic.
The molecular formula is CH3 [Si (cH3) 2] nSi (CH3) 3.
The average molecular weight is 5000 ~ 100000.
Based on the differences on the molecular weight, kinematic viscosity varies from 1.0 × 10-6 ~ 100000 × 10-6 square meters / second.
Long-term use temperature range is -50 ~ 180 ℃. In isolated air or inert gas, it can be subject to long-term use at 200 ℃.
Viscosity coefficient: 0.31 ~ 0.61. Surface tension: 1.59 ~ 2.15 × 10-4N / cm.
Dielectric constant (23 ℃, 100Hz): 2.18 ~ 2.17.
Volume resistivity (23 °C): 1.0 × 1014 to 1.0 × 1016Ωcm3.
Dielectric loss tangent (23 ℃, 100Hz):0.00002~0.00004.
Breakdown voltage strength: 13.7 ~ 17.7kV / mm.
It is soluble in benzene, toluene, xylene and ethyl ether, partially soluble in ethanol, butanol and acetone, insoluble in cyclohexanol, methanol, paraffin oil and vegetable oil.
It has excellent hydrophobic moisture resistance, good light transmission, and chemical stability.
Widely used in insulation, heat, moisture-proof filler, defoamer, mold release agent, lubricant and surface treatment agent.
It is produced by the reaction between octamethylcyclotetrasiloxane and hexamethyldisiloxane in the presence of concentrated sulfuric acid or tetramethylammonium hydroxide catalyst.
Why use silicones in Car&Home Care?
Ease of application – lubricant
Polish cleaning ability – increase surface wettability
Ease of polishing – lubricant, less effort to polish
Streakability – reduces “streaking” of polish
Gloss / Shine – high Refractive Index
Increase colour intensity (depth of gloss)
Surface protection – durability & detergent resistance
Water repellency – long lasting
Surface smoothness/slip – more difficult for dirt to adhere
Home Care – Surface Care
Furniture and wood polishes
Floor polish
Metal/stainless steel polish
Shoe & Leather care
Glass cleaners
Carpet cleaning products
Tile grout sealers
Antistatic solutions
Silicones for the Home&Car Care Industry
Silicone Oils
BRB Silicone Oils 5, 10, 20, 50, 100, 350, 1000, 12.500, 60.000 cSt
Silicone Emulsions
BRB Sempure 35, BRB Sempure 60, BRB Sempure 66
BRB Sempure HV 6500, BRB Sempure 1997
Aminofunctional Oils
BRB AF 989 NEW, BRB SF 240, BRB SF 315, BRB SF 430, BRB QF 100 NEW
Aminofunctional Emulsions
BRB Sempure 3733, BRB Sempure 135, BRB Sempure 152 NEW
BRB Sempure 230, BRB Sempure 270
Specialty Emulsions
BRB Sempure 330, BRB Sempure 422
Volatile Silicones
BRB CM 40, BRB CM 50, BRB Silicone oil 0,65, 1, 1.5, 2, 3 cst
Silicone Glycols
BRB 523, BRB 526, BRB 6340, BRB 431
Silicone resins
BRB RD 50 NEW, BRB VPR 100 NEW
Paintable Silicones
BRB Sempure 5332, BRB Alkyl Aryl Fluid
Silicone antifoams
BRB Akasil TG 10/20/30, BRB Akasil LD 20
Silicone oils 5, 10, 20, 50, 100, 350, 1.000, 12.500, 60.000 cSt
For customers who want to emulsify by themselves and fine tune their own emulsions
BRB Sempure 66
Properties
• 60% active, macro emulsion of low viscosity silicone oil • Non-ionic emulsifier system
• Small particle size (<1 micron)
Benefits
• Easy to formulate into aqueous systems
• Low gloss
• No streaking
• Outstanding spreading and wetting properties
Typical dosage: 3.0-10%
BRB Sempure HV 6500
Properties
• 60% active, macro emulsion of medium & high viscosity silicone oils
• Non-ionic emulsifier system
• Small particle size (<1 micron) giving good stability and outstanding dilution properties
Benefits
• Easy to formulate into aqueous systems
• Base ingredient of a wide range of polish formulations
• 2in1 product – medium viscosity silicone oil provides good wetting and spreading while high viscosity one is responsible for increased gloss and durability
Typical dosage: 5.0-30%
BRB Sempure 1997
Properties
• 55% active, macro emulsion of high viscosity silicone oil • Non-ionic emulsifier system
• Small particle size (<1 micron)
Benefits
• Easy to formulate into aqueous systems
• Superior gloss and brightness
• Excellent color enhancement
• Good water repellency and durability
Typical dosage: 3.0-10%
Silicone oils & emulsions – benefits
Ease of application – streak & smear resistant
Improved cleaning – low surface tension, increases surface wetting.
Depth of Gloss / Color – high Refractive Index
Water repellency – presence of methyl groups promotes water beading
Slip – gives a smooth/lower friction surface
Silicone oils & emulsions – applications
Rubber, vinyl, plastic and leather protectants
Furniture cleaners and protectants
Hard surface cleaners and protectants
Spray and wipe polishes (quick detailers)
Car shampoos
Paint polishes, waxes and sealants
Dosage of silicone emulsion(s) in the formulation depends on the type of emulsion and the type of formulation.
It can vary from 5% to 35%.
Dosage of silicone oil(s) varies from 1% to 15%.
Aminofunctional silicones – properties
Dimethicone backbone grafted with amino groups
Polar amine groups effectively anchor the product to substrate ->
physical attraction to negatively charged surfaces
Reactive grades crosslink to form a polymer film with high detergent resistance and effective protection
Aminofunctional emulsions – range
BRB Sempure 3733
40% cationic macro emulsion for extended durability and slip.
BRB Sempure 152 NEW
50% non-ionic macro emulsion of aminofunctional silicone polymer.
BRB Sempure 135
35% non-ionic micro emulsion for extended durability and good hydrophobic effect. Allows to formulate transparent products.
BRB Sempure 230
30% non-ionic micro emulsion of silicone quaternium polymer. Film former.
Allows to formulate transparent products.
BRB Sempure 135 – for Car Care
Properties
• 35% active, micro emulsion of aminofunctional silicone
• Specifically developed for use in transparent, aqueous, hard surface cleaning & conditioning products
• Forms a protective layer on the treated surface to provide water repellency, increased gloss and durable protection
Benefits
• Easy to formulate into aqueous systems
• Remains transparent in most detergent formulations
• Beads-up water on surfaces
• Small particle size preventing residual smearing on the glass
• Imparts water repellency, increased gloss and durable protection
• Good slip effect
Typical dosage: 1.0-10%
BRB Sempure 230 – for Home Care
Properties
• 30% active, micro-emulsion of silicone quaternium polymer
• Specifically developed for cleaning formulations
• Offers shine and protection to ceramics, glass and painted surfaces
Benefits
• Excellent slip.
• Reduces formation of streaks and scale on tiles and glass
• Very easy to formulate into aqueous blends
• Very easy to formulate into transparent products
• Can also be used in car care formulations
Typical dosage: 0.5-3%
Aminofunctional Silicones – benefits
Ease of application – streak resistant
Depth of Gloss / Color – high Refractive Index
Strong hydrophobic effect – water beading
Durability – semi-permanent bonding to the substrate
Slip – give a smooth/lower friction surface
Dirt repellency/easy cleaning – due to smooth, hydrophobic surface
Aminofunctional Silicones – applications
Rubber, vinyl, plastic and leather protectants – in combination with
base silicone emulsions, dosage up to 5%
Furniture and hard surface protectants – dosage up to 3%
Glass cleaners and windscreen washers – dosage up to 1%
Spray and wipe polishes (quick detailers) – in combination with base
silicone emulsions, dosage up to 3%
Spray waxes and sealants – Sempure 135, dosage up to 10%
Car shampoos – Sempure 135, dosage up to 5%
Paint polishes and waxes – dosage up to 10%
Specialty emulsions
BRB Sempure 330 – is a 30% active emulsion of a high molecular weight silicone urethane resin.
It is used to improve water repellency, dirt resistance, gloss and softness in various formulations of hard surface and leather dressings.
It provides long-lasting protection to a treated surface.
BRB Sempure 422 – is a 22% active microemulsion of phenyl functional silicone and a quaternary ammonium functional silicone.
It combines the gloss-boosting effect of phenyl-modified silicone with film-forming properties of silicone quat allowing formulation of transparent products with unique properties.
It is an alternative to classic gloss increasing emulsions of high viscosity silicone oils.
BRB Sempure 330
Properties
• A 30% active emulsion of a high molecular weight silicone urethane resin
• Non-ionic emulsifier system
• Specifically developed for lasting protection
Benefits
• Hydrophobising film former
• Very good durability and resistance to elements
• Gloss improvement and streak free finish
• Especially suitable for leather protection
• Easy to formulate into aqueous blends
Typical dosage: 0.5-5%.
BRB Sempure 422
Properties
• 22% active, micro-emulsion of phenyl modified silicone and silicone quaternium polimer
• Non-ionic emulsifier system
• Preservative free
Benefits
• Imparts excellent gloss enhancing benefits
• Imparts slickness to a treated surface
• Improves wipe-off with „no streak” effect
• Easy to formulate into aqueous blends
• Can be formulated in transparent products
Typical dosage: 1-5%.
Volatile Fluids – range
BRB CM 50 – Cyclopentasiloxane, D5
BRB CM 40 – Cyclotetrasiloxane, D4
BRB Silicone oil 0.65cSt – Hexamethyldisiloxane
BRB Silicone oil 1cSt – Trisiloxane
BRB Silicone oils 1.5, 2, 3cSt – Dimethicone
Volatile Fluids – benefits
Oil and alcohol solubility
Volatile
Non-greasy
Good spreadability/wetting
Leave no residue
Colorless/odorless
Safe for most common surfaces
Volatile Fluids – applications
Polishes – replace solvents as carriers (for „solventless” solvent formulations)
Tar and glue removers
Rinse and drying aids
Car waxes and sealants
Silicone Glycols – range
BRB 526
PEG-12 Dimethicone, emulsifier Si/W, HLB 13
BRB 523
PEG/PPG-18/18 Dimethicone, co-emulsifier W/Si, HLB 8
BRB 6340
PEG-10 Dimethicone, emulsifier W/Si, HLB 4.5
BRB 431
Modified trisiloxane, superspreader, surface tension depressant
BRB 526 – classic silicone glycol
Properties
Silicone surfactant based on ethoxylated dimethicone
Good wetting and surface tension reduction
Water soluble
Benefits
Improves spreading
Antifogging and sheeting properties
Reduces surface tension
Can also be used in car care formulations
BRB 431 – trisiloxane superspreader
Properties
Superspreading surfactant based on trisiloxane ethoxylate
Outstanding surface tension reduction
Water soluble
Benefits
Improves spray coverage
Excellent penetration, antifogging and sheeting properties
Reduces surface tension already at very low dosage (0,1%)
Can also be used in car care formulations
Silicone Glycols – benefits
Foam booster / foam quality
Water/alcohol dispersible
Spreading, wetting agents
Antifogging
Emulsifiers, dispersing agents
Silicone Glycols – applications
Designed for formulating stable water in silicone emulsions or emulsions
in which volatile silicones make up the oil phase.
Emulsions based on silicone glycols are less greasy than typical water in oil products
Cleaners with antifogging properties
Spreading additives in sprayable formulations
Silicone Resins – range
BRB RD 50 NEW
50% active silicone resin dispersion in solvent.
BRB VPR 100 NEW
100% active blend of silicones.
BRB RD 50 NEW
Properties
• 50% active dispersion of a high molecular weight silicone resin in a solvent
• Low viscosity, easy to handle
Benefits
• Excellent film former
• Excellent durability
• Wash-off and rub-off resistance
• High hydrophobicity
Typical dosage: 2-10%.
BRB VPR 100 NEW
Properties
• 100% active blend of silicones specially formulated as a concentrate for use in Home and Car Care
• Solvent-dilutable
Benefits
• Good heat stability
• Good wetting and spreading
• Excellent durability and water-resistance
• High gloss
• Dilutable with many popular solvents i.e. white spirits, petroleum hydrocarbons, low aromatic hydrocarbons or volatile silicones
Typical dilutions: 1:2-1:9
Silicone Resins- benefits
Excellent film formers
Wash-off and rub-off resistant
Extraordinary water resistance
Great durability
Silicone Resins – applications
Leather protectants (shoes, upholstery, etc.)
Exterior plastic and vinyl protectants
Tire and rubber protectants
Car waxes and paint sealants
Paintable Silicones
These silicones are capable of being over-painted. They do not require unusual or extraordinary cleaning operations prior to painting, plating or bonding.
They are used in professional polishes in car body shops or custom paint shops.
BRB Sempure 5332
Paintable 50% non-ionic emulsion of alkyl aryl silicone
BRB Alkyl Aryl Fluid
For customers who want to emulsify by themselves
Also volatile fluids are over-paintable:
BRB CM 40
BRB CM 50
BRB Silicone oil 0.65 cst
Silicone Antifoams
BRB Akasil TG 10, 20, 30
• Standard grade, silicone based antifoam emulsions
• Suitable for various home care applications
• Suitable for products with high salinity
• Good high temperature performance
• TG 10 : 14% active content
• TG 20 : 22% active content
• TG 30 : 30% active content
Car Care – Product selector guide
Water
based
Solvent
based
Wash
and Rinse
Aid
Exterior car
polish/
conditioner
Glass
Care
Tire/ Rim
Care
Interior
Trim/
Dashboard
Leather
Silicone oils X X X X X
Silicone
emulsions
X X X X X
Aminofunctional
silicones
(oils/emulsions)
X X X X X
Alkyl Aryl
silicones
X X
Silicone resins X X X
Volatile silicones X X X X
Silicone glycols X X X
Home care – product selector guide
Product Water
based
Solvent
based
Leather Care Furniture Care Hard Surface
Care
Glass Care
Silicone oils X X
Silicone emulsions X X X X
Volatile silicones X X
Silicone glycols X X X
Aminofunctional
silicones
(oils/emulsions)
X X X X
Silicone resins X X
Antifoams X
Customer support
Formulation support
We can provide examples of formulations using our silicones
Ready-to-use products
BRB PTFE Clean & Shine
Polish for 2nd hand cars (abrasive)
BRB New Car Polish
Polish for new cars (mild)
BRB Glass Water Repellant
Windscreen polish
Laundry Care – product range & applications
Silicone antifoams
BRB Akasil TG 10/20/30
BRB Akasil 20LD
Foam control in liquid detergents & fabric conditioners (filling aid).
Antifoam systems for powder detergents (post-addition or spray on).
Silicone Glycols
BRB 526
Wetting and spreading agent for liquid laundry sachets (monodose).
Volatile Silicones
BRB CM 50
Dry cleaning solvent, alternative to Tetrachloroethylene.
Laundry Care – product range & applications
Silicone Emulsions as performance additives for fabric softeners
Base option:
Products – BRB Sempure 35, BRB Sempure 60. Benefit – soft touch effect.
Standard option:
Products – BRB Sempure 3733, BRB Sempure 152 NEW. Benefit – improved soft touch effect, anti-wrinkle and easy ironing
properties.
Top option:
Products – BRB Sempure 270. Benefit – the best soft touch effect, anti-wrinkle, easy ironing and good rewetting properties.
BRB Akasil 20LD – for Laundry Care
Properties
• 20% active, high performance, silicone based antifoam emulsion
• Optimized for use in surfactant-rich formulations and environments, as encountered in the detergent and textile industries
Benefits
• Effective and durable over a wide pH range
• Outstanding reliability and versatility
• Suitable for products with high salinity
• Available in easy-to-use emulsion form
• Good high temperature performance
• Excellent knockdown as well as defoaming performance
BRB Sempure 270 – for Laundry Care
Properties
• 70% active, micro-emulsion of quat polyether terpolymer
• Specifically developed for fabric treatment
• Recommended for use in rinse-cycle laundry products
• Compatible with organic softeners (e.g. esterquats)
• Typical formulation contains 2.5% BRB Sempure 270 and 15% organics
• Post-addition with moderate agitation
Benefits
• Deposits onto fabric from the rinse cycle
• Enhance softness (silicones have a silky feel attenuating the ‘greasier’ organics)
• Promotes ease ironing
• Improve water absorbency