ZelieBlok 1900S
ZelieBlok 1900S is a calcium silicate board manufactured by a unique patented process together with a patent protected formulation utilizing the highest quality raw materials.
ZelieBlok 1900S is designed to serve as a backup insulation for any refractory construction, such as insulating fire brick, dense refractory brick, castable, gunning mix, plastic refractory or ceramic fiber.
