Supercoat is a premium, ultra-fine particle size, beneficiated, wet ground white calcitic marble that has been surface modified to facilitate dispersion in all types of organic systems. It offers a good balance of cost and performance in most thermoplastics, but is particularly suited to polyolefin and rigid vinyl systems where high impact strength is required. Supercoat is NSF 14 certified for PVC pipe and fittings for water systems.