main raw materials: modified corn starch, foaming agent,white ... Well Compatibility Biodegrade fastPurpose:gypsum board foam(building materials,chemicals,plastics,and other industries).Packaging:125kg/ ... flexibility and stable, water-soluble good2. Good fluidity, coating, adhesion of good permeability is strong3. Can significantly ... value:4---9Bond strength: ≥90kg/cm2 raw materials of gypsum boards