SIPERNAT represents a specific product range of precipitated silica, aluminum and calcium silicates. SIPERNAT 298 is highly suitable for rubber applications, especially Silicone Rubber e.g. HTV Silicone Rubber. Careful adjustments of parameters such as surface area, particle size, oil absorption capacity ad purity (conductivity) result in a product with different properties. SIPERNAT 298 is a fine milled silica with neutral pH value, with relatively high surface area, medium particle size and a very high purity based on selected raw materials. When using SIPERNAT 298, high transparent Silicone Rubber products with excellent mechanical properties and a very low yellowish discoloration can be achieved.Information provided by Evonik |