Why Silicone Rubber Inserts Won’t Work With Gum-Stock

Liquid Silicone vs. Gum Stock Liquid silicone is a two-part system that gets mixed as it is used. Gum-stock silicone, on the other hand, is a one-part system that has a shelf life. Both liquid and gum-stock silicones are heat cured. Liquid silicone has the consistency of Vaseline, while gum-stock has a consistency of putty…. Read more »