Fumed silica and some special precipitated silica both can added into silicone rubber as reinforcing agent, to improve the tensile strength and wear resistance of silicone rubber products.
Tyre, shoe sole etc.
Precipitated silica is used as reinforcing agent for a variety of rubber products, e.g. rubber roller, tyre, rubber tube, rubber belt, sealing element, rubber sole etc. It gives rubber products higher tear resistance, tensile resistance and transparency.