ELASTOSIL® R Plus 4000/60 HCR silicone rubbers are addition-curing, two part compounds (batch grades). The vulcanizates show excellent transparency and good to very good mechanical properties. Properly postcured vulcanizates of ELASTOSIL® R Plus 4000/60 comply with BfR and FDA food contact regulations. The material also passes USP XXIII Class VI and ISO 10993 certification is available. No peroxide decomposition products are formed during vulcanization. In order to obtain an intermediate hardness, the different durometer grades may be blended with the PT 2 catalyst added last. Application: ELASTOSIL® R Plus 4000/60 materials are intended for fabrication of molded articles that afford high transparency and very good tear resistance values. Information provided by Wacker Chemie AG. |