Alumilite Quick Set RTV Silicone Mold Making Rubber 5 lb
Alumilite Quick Set RTV Silicone Mold Making Rubber 5 lb. Extremely easy to use, general purpose rubber with a medium hardness, very thin, vacuum not required for most molds. Great for simple 1 and 2 piece molds. 45A hardness. Open Time: 1 hr./Demold Time: 8 hrs.