main raw materials: modified corn starch, foaming agent,white ... :gypsum board foam(building materials,chemicals,plastics,and other industries).Packaging:125kg/200kg plastic barrels packaging.Storage and ... the gypsum board toughnessApplicationUsing the corn starch as raw material, the product is made with multi-chemicals ... centipoisesPH value:4---9Bond strength: ≥90kg/cm2 raw materials of gypsum boards