VitroBloc™ 400

Antiblock agent. It is made from post-industrial sources of reinforcement fiberglass byproducts. VitroBloc™ 400 is a white powder finer than 40 μm top size with a very low level of minus 5 μm fines. It is amorphous (non-crystalline) and has total alkali content (Na2O + K2O) less than 1.5%. The feedstock is certified post-industrial, and is free from contaminants associated with postconsumer curbside glass. It is designed for excellent blocking and clarity properties utilizing a recycled powder.