Product Information Personal Care Dow Corning 9040 Silicone Elastomer Blend

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Product Information Personal Care Dow Corning 9040 Silicone Elastomer Blend FEATURES & BENEFITS Compatible with a variety of lipophilic active ingredients such as fragrances, sunscreens, vitamins, and vitamin derivatives Clear to slightly translucent crosslinked silicone elastomer gel Easy to formulate Acts as a thickening agent for water-in-oil and water-in-silicone formulations and silicone fluids Slight sebum absorption Provides dry smoothness and a light silky skin feel non-greasy Enhances the aesthetics of volatile silicones Reduces tackiness of formulations Quick absorption Cold processing The stability of vitamin derivatives such as Vitamin A Palmitate is improved when pre-mixed with Dow Corning 9040 Silicone Elastomer Blend prior to incorporation into a finished formulation INCI NAME: Cyclopentasiloxane (and) Dimethicone Crosspolymer APPLICATIONS Skincare Hair care Many other potential formulations TYPICAL PROPERTIES Specification Writers: These values are not intended for use in preparing specifications. Please contact your local Dow Corning sales office or your Global Dow Corning Connection before writing specifications on this product. Property Unit Result Appearance Viscosity mm 2 /s 250,000 580,000 Specific gravity 0.96 Non-volatile content % 12.0 12.75 Cyclotetrasiloxane (D4) content % < 1 DESCRIPTION Dow Corning 9040 Silicone Elastomer Blend is a mixture of high molecular weight silicone elastomer in cyclopentasiloxane. Figure 1: Cross-linked network of Dow Corning 9040 Silicone Elastomer Blend. Crystal clear to slightly translucent gel. May have slight yellow or brownish color. Free of particulate matter. HOW TO USE Disperse the oil-phase into Dow Corning 9040 Silicone Elastomer Blend using simple mixing. There is no need for post-shearing. Dow Corning 9040 Silicone Elastomer Blend provides cyclopentasiloxane which has already been thickened and can provide a novel form of delivery for other formulation components. Thickening of formulations can be achieved using a cold process.

Formulation tips Dow Corning 9040 Silicone Elastomer Blend may be formulated into oil-inwater emulsions, water-in- silicone emulsions, water-in-oil emulsions and anhydrous products. It may be added to the oil phase or silicone phase in an emulsion formulation. It may be post-added to emulsions provided the emulsion is viscous enough for the Dow Corning 9040 Silicone Elastomer Blend to be dispersed. For ease of use, its viscosity may be reduced by blending with dimethicone or cyclomethicone. It may be formulated with organic oils and silicon-based materials with the use of mixers and may be subjected to high shear devices such as homogenizers and sonolators. It is dispersible in a variety of liquid oils (refer to compatibility chart on page 4). Because the elastomer is stable, Dow Corning 9040 Silicone Elastomer Blend may be subjected to heat for a short duration. When heat is used, the material should be processed in an enclosed vessel to prevent the cyclopentasiloxane from volatilizing; the vessel should be inerted at temperatures over 60 C (140 F). Processing Dow Corning 9040 Silicone Elastomer Blend is a viscous product but has the unique characteristic of being a shearthinning material (see Figure 6). The following information will aid in the selection of the proper equipment to use when processing Dow Corning 9040 Silicone Elastomer Blend out of a drum. Pump recommendation GRACO BULLDOG 10:1 Pump with follower plate. For more information, contact GRACO at +1 800 367 4023. Note: GRACO offers various BULLDOG models, and other pump manufacturers may offer similar equipment equally capable of processing the material efficiently. Users should work directly with the pump manufacturer to determine the best design for their needs. Customer-specific pump design considerations 1. Pressure and flow requirements a) Air supply pressure: Will depend on plant s air supply capabilities. b) Discharge pressure: Will depend on total pressure required to move the silicone elastomer blend from point A to point B. Pressure drops due to elevation, frictional losses within the piping, fittings, valves, filters, etc., will need to be considered. c) Flow requirements: Will depend on how quickly the user wishes to transfer the silicone elastomer blend from a 208 liter (55-gal) drum into a vessel. 2. Material viscosity in cp at the application temperature Dow Corning 9040 Silicone Elastomer Blend is shear thinning. Effective viscosity is 80,000 100,000 cp. This is only an example; it is the responsibility of the user to determine the effective viscosity based on the user s application. Once the material is pushed through the pump by the follower plate and processed in the pump, the product will shear thin and process as a lower-viscosity fluid. 3. Construction material for wetted parts Stainless steel is recommended but carbon steel may also be used. 4. Construction materials for seals and gaskets. VITON or TEFLON materials are recommended. Please contact Dow Corning for alternatives. Clean-up XIAMETER PMX-0245 Cyclopentasiloxane, which dilutes the viscosity of Dow Corning 9040 Silicone Elastomer Blend to water thin, is recommended for soaking or cleaning equipment. Other non-polar solvents may work as well. PATENT POSITION Dow Corning is the exclusive licensee of U.S. Patent No. 5,599,533; US Patent No. 6,027,738 and U.S. Patent No. 6,387,405 and any foreign equivalents thereof. Under this license the Licensor covenants not to enforce these patents against any third party who is making, using or selling products covered by these patents for so long as that third party is able to show that they purchased the silicone elastomer used in their product directly from Dow Corning or a Dow Corning distributor. HANDLING PRECAUTIONS PRODUCT SAFETY INFORMATION REQUIRED FOR SAFE USE IS NOT INCLUDED IN THIS DOCUMENT. BEFORE HANDLING, READ PRODUCT AND SAFETY DATA SHEETS AND CONTAINER LABELS FOR SAFE USE, PHYSICAL AND HEALTH HAZARD INFORMATION. THE SAFETY DATA SHEET IS AVAILABLE ON THE DOW CORNING WEBSITE AT DOWCORNING.COM, OR FROM YOUR DOW CORNING SALES APPLICATION ENGINEER, OR DISTRIBUTOR, 2

OR BY CALLING DOW CORNING CUSTOMER SERVICE. USABLE LIFE AND STORAGE When stored at or below 60 C (140 F) in the original unopened containers, this product has a usable life of 24 months from the date of production. PACKAGING INFORMATION This product is available in 15 kg and 180 kg. Samples are available in 400 g. LIMITATIONS This product is neither tested nor represented as suitable for medical or pharmaceutical uses. HEALTH AND ENVIRONMENTAL INFORMATION To support customers in their product safety needs, Dow Corning has an extensive Product Stewardship organization and a team of Product Safety and Regulatory Compliance (PS&RC) specialists available in each area. For further information, please see our website, dowcorning.com or consult your local Dow Corning representative. LIMITED WARRANTY INFORMATION PLEASE READ CAREFULLY The information contained herein is offered in good faith and is believed to be accurate. However, because conditions and methods of use of our products are beyond our control, this information should not be used in substitution for customer s tests to ensure that our products are safe, effective, and fully satisfactory for the intended end use. Suggestions of use shall not be taken as inducements to infringe any patent. Dow Corning s sole warranty is that our products will meet the sales specifications in effect at the time of shipment. Your exclusive remedy for breach of such warranty is limited to refund of purchase price or replacement of any product shown to be other than as warranted. TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, DOW CORNING SPECIFICALLY DISCLAIMS ANY OTHER EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY. DOW CORNING DISCLAIMS LIABILITY FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES. We help you invent the future. dowcorning.com 3

Table 1: Compatibility Wt % Dow Corning 9040 Silicone Elastomer Blend: 10 50 90 Material Water NC NC NC Triglycerides NC NC NA Solvents Ethanol NC NC C Propylene glycol NC NC C Isopropyl alcohol NC NC C Acetone NC NC C Fatty Esters Isopropyl myristate C C C Octyl palmitate C C C Hydrocarbons Mineral oil NC NC C Isododecane C C C Silicones XIAMETER PMX-0244 Cyclopentasiloxane, XIAMETER PMX-0245 Cyclopentasiloxane, XIAMETER PMX-0344 Cyclopentasiloxane Blend, XIAMETER PMX-0345 Cyclopentasiloxane Blend C C C XIAMETER PMX-200 Silicone Fluid 5-30000 cst C C C Dow Corning 556 Cosmetic Grade Fluid C C C NC: Not Compatible; C: Compatible; NA: Not Available Table 2: Sensory Evaluation Results 1 Sensory parameters Before absorption: Dow Corning 9040 Silicone Elastomer Blend Wetness (1=dry, 10=wet) 3.24 1 8.05 1 Spreadability (1=difficult, 10=easy) 3.62 1 8.33 1 Tackiness (1=not tacky, 10=tacky) 3.00 1.86 Absorbency (1=slowly, 10=quickly) 6.95 5.38 After absorption: Gloss (1=not shiny, 10=shiny) 1.29 1 5.67 1 Film residue (1=no film, 10=film) 6.00 1 4.10 1 Greasiness (1=not greasy, 10=greasy) 1.95 3.95 Silkiness (1=silky, 10=drag) 3.76 4.29 Tackiness (1=not tacky, 10=tacky) 2.14 2.05 1 Significantly different. Test method: Paired comparison, incomplete block experiment, number of panellists: 28. XIAMETER PMX-0245 Cyclopentasiloxane 4

Figure 2: Thickening Effect Figure 3: Absorption of Sebum Figure 4: Volatility of Cyclopentasiloxane from Elastomer Blend 5

Figure 5: Stress Sweeps for Two Elastomer Blends Figure 6: Stress Ramps (0-5,000 dynes/cm 2 ) for Dow Corning 9040 Silicone Elastomer Blend at Elastomer Levels 6