HN-36 by Huber Engineered Materials is alumina trihydrate. Acts as a flame retardant. It is halogen–free and has medium-coarse particle size. The particle size distribution is specifically designed for low viscosity, high filler loading levels, and excellent processing characteristics, up to 200°C. HN-36 is suitable for use in rubber goods, compression molded thermosets, latex, vinyl and urethane
compounds and carpet backings.