1:1 Platinum Cure Liquid Silicone Rubber Food Grade Low Viscosity For Chocolate And Candy Casting Molds In mold production applications, 1:1 platinum-catalyzed addition RTV-2 liquid silicone rubber possesses unique properties, making it the ideal material for fabricating high-precision, high-quality molds. Product Advantages 1. Ultra-low curing shrinkage (<0.1%) Accurately replicates fine textures and tiny features of prototypes. Great for high-precision molds of jewelry,