Dow Corning® 9040 Silicone Elastomer Blend 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. Dow Corning ® 9040 Silicone Elastomer Blend: May be added to the oil phase or silicone phase in an emulsion formulation. May be post-added to emulsions provided that the emulsion is viscous enough for Dow Corning ® 9040 Silicone Elastomer Blend to be adequately dispersed. Viscosity may be reduced by blending with dimethicone or cyclomethicone for ease of use. 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. May be subject to heat for a short duration of time as the elastomer is stable. When heat is used, it is recommended that the Dow Corning ® 9040 Silicone Elastomer Blend be processed in an enclosed vessel/container to prevent the cyclomethicone from volatilizing off and the vessel be inerted at temperatures over 60° C. Is dispersible in a variety of liquid oils. Please refer to the Dow Corning Product Information Sheet titled “Information about Dow Corning ® 9040 Silicone Elastomer Blend” for more information. Pump Recommendation: GRACO, Bulldog 10:1 Pump with follower plate1 A guide to formulating and processing Thank you for your interest in our Dow Corning ® brand 9040 Silicone Elastomer Blend. Dow Corning ® 9040 Silicone Elastomer Blend is a mixture of a high molecular weight silicone elastomer (dimethicone crosspolymer) in cyclopentasiloxane. It has a viscosity range of 250,000-580,000 cp and a typical nonvolatile content of 12.0 wt % to 12.75 wt %. It is intended for use in antiperspirant and deodorant applications, skin care applications such as sunscreen and color cosmetics, and for hair care uses such as styling aids. These recommendations are also valid for Dow Corning® 9045 Silicone Elastomer Blend. 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 Dow Corning® 9040 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 customer would like to pump out Dow Corning ® 9040 Silicone Elastomer Blend from a 55-gallon drum into a vessel. 2. Material Viscosity in cps at the Application Temperature. Dow Corning ® 9040 Silicone Elastomer Blend is shear thinning. Effective viscosity is ~ 80,000-100,000 cp. This is to be used as an example. It is the responsibility of the customer to determine the effective viscosity based on their application. Once the product is pushed through the pump by the use of a follower plate and processed in the pump, the product will shear thin and process as a lower-viscosity fluid. 3. Material of Construction for Wetted Parts. Stainless steel is recommended but carbon steel may be used. 4. Material of Construction for Seals and Gaskets. Viton® or Teflon® are recommended. Please contact Dow Corning for alternative materials. How can we help you today? When you need industry-leading innovation, Dow Corning can help. Dow Corning® brand solutions are dedicated to meeting your needs for specialty materials, collaborative problem solving and innovation support. Learn how we can help you bring BEAUTY WITH IMPACT to your products, at dowcorning.com/personalcare. If you simply need to buy standard silicone materials at market-driven prices, we can help you achieve that through our XIAMETER® brand. Learn more at xiameter.com. Or contact your local Dow Corning Sales representative at dowcorning.com/ContactUs. Processing Information Many of our customers enjoy the aesthetics that Dow Corning® 9040 Silicone Elastomer Blend brings to their product application. As customers move their product from the development stage to the pilot plant stage, they have many questions about how to handle Dow Corning® 9040 Silicone Elastomer Blend in a pilot plant and manufacturing environment. Many questions are related on how to pump Dow Corning® 9040 Silicone Elastomer Blend out of a drum and what type of seals and gasket materials should be used. The silicone elastomer blend is a viscous product but has the unique characteristic of being a shear thinning material (please refer to Figure 2 of the Dow Corning Product Information Sheet titled “Information about Dow Corning® 9040 Silicone Elastomer Blend”). Enclosed is information that will aid in the selection of the proper equipment to use when processing Dow Corning® 9040 Silicone Elastomer Blend out of a drum. Storage and Handling Information Dow Corning® 9040 Silicone Elastomer Blend is considered a combustible liquid (per NFPA30 definition of a combustible liquid) for storage purposes and a flammable solid for transportation purposes. Precautions should be taken by the customer to incorporate proper handling and processing procedures to avoid flame and ignition sources. Please refer to the safety data sheet for further information. Cleanup XIAMETER® PMX-0245 Cyclopentasiloxane is best for soaking or cleaning equipment as it dilutes the viscosity of Dow Corning® 9040 Silicone Elastomer Blend to water thin. Other non-polar solvents could work as well. IPA is NOT acceptable for solvent washing as it will “dry up” the elastomer and leave small balls of residual elastomer behind that are very difficult to remove. However, IPA may be used on rags for miscellaneous cleanup of equipment and floors. It does a good job “releasing” Dow Corning® 9040 Silicone Elastomer Blend from surfaces when rubbed. GRACO offers various Bulldog models. It is recommended that customers work directly with GRACO to determine the best design that will meet their needs. GRACO may be contacted by visiting gracopumps.com. Other pump manufacturers could offer similar equipment that could process the material as efficiently. 1 Images: Page 1: AV18222, AV13907 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. 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. Dow Corning and XIAMETER are registered trademarks of Dow Corning Corporation. We help you invent the future is a trademark of Dow Corning Corporation. Teflon is a registered trademark of E.I. du Pont de Nemours and Company. Viton is a registered trademark of DuPont Performance Elastomers L.L.C. ©2003, 2009, 2012 Dow Corning Corporation. All rights reserved. AMPM294-12 Form No. 27-1130C-01