... .s7. viscosity stability:90%Product description:1.Translucent cement grout, ivory, flexibility and stable, water-soluble good2. Good fluidity, coating, adhesion ... strength of the gypsum board toughnessApplicationUsing the corn starch as raw material, the product is made with multi-chemicals and by ... Viscosity 2500---7000 centipoisesPH value:4---9Bond strength: ≥90kg/cm2 raw materials of gypsum boards