RTV Silicone Rubbers

RTV silicone rubber is a two-part liquid silicone which can be used to create flexible silicone moulds for casting, or for making flexible silicone components themselves.

Our CS25 Condensation Cure Silicone Rubber is easy-to-use and cost effective, and is ideal for making for basic silicone moulds for fast-cast polyurethane (such as our Xencast P2), especially if a degassing chamber is not available. Our AS40 Addition Cure Silicone Rubber is a higher performance silicone rubber recommended when making moulds for clear casting resins or making silicone components themselves.

Both types of silicone can be pigmented using our silicone colour pigments. AS40 can be turned into a brushable silicone, suitable for glove moulding, with the addition of a thixotropic additive.