How is silicone rubber made?

Silicone rubber is a combination of an inorganic Si-O backbone, with organic functional groups attached.  The silicon-oxygen bond gives silicone its high temperature resistance and flexibility over a wide range of temperatures.
The silicone polymer is mixed with reinforcing fillers and processing aids to form a stiff gum, which can then be crosslinked at elevated temperature using either peroxides or polyaddition curing.  Once crosslinked the silicone becomes a solid, elastomeric material.
Here at Silicone Engineering, all our silicone materials are cured using heat which classifies our silicone products as HTV silicone or High Temperature Vulcanised. All our silicone grades are kitted, mixed and manufactured at our 55,000-sq. ft. facility in Blackburn, Lancashire. This means we have full traceability and accountability of the production process and can ensure the highest standards of quality management throughout. We currently process over 2000 tonnes of silicone rubber each year which allows us to be very competitive in the silicone market place.


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