This special thixotropic additive adds like a thickening agent for addition cure silicone rubber, such as our AS40. The additive can be used to turn liquid RTV silicone rubber into a thick, brushable silicone that can be used to make glove molds or reusable silicone vacuum bags.
Typically added at 1-3%. Available to buy online in 50g, 150g and 1kg packs.