PVA 2488 (Polyvinyl Alcohol 2488)
Excellent Water Solubility: Soluble in cold water, with even faster dissolution in hot water; insoluble in most organic solvents, such as acetone and toluene.
High Viscosity and Toughness: High molecular weight imparts high viscosity and strong cohesive force, resulting in flexible, water-resistant, and crack-resistant films.
Superior Adhesion: Exhibits strong adhesion to materials such as cellulose, cement, gypsum, wood, and paper.
Strong Compatibility: Can be compounded with HPMC, CMC, starch ethers, retarders, and other additives to enhance the performance of mortars and putties.
Degree of polymerization: 2400–2500
Degree of alcoholysis: 86–89 mol% (typically 88%)
Viscosity (4% aqueous solution, 25°C): 44–50 mPa·s (high viscosity)
Volatile matter: ≤5.0%
Ash content: ≤0.5%
pH: 5–7 (neutral)
Fineness: ≥120 mesh
Construction Mortars / Putties: Interior & Exterior Wall Putties, Thermal Insulation Mortars, Tile Adhesives, Thin-bed Adhesives — Enhances adhesion and water retention; prevents cracking, hollowing, and detachment.
Adhesives: Wood Adhesives, Paper-Plastic Laminating Adhesives, Remoistenable Adhesives — High tack, fast-drying, strong bonding strength.
Paints / Coatings: Water-based Paints, Paper/Fabric Coatings, Photosensitive Films — Film-forming, thickening, stabilizing properties.
Gypsum / Cement Products: Gypsum Boards, Joint Compounds, Cement Additives — Improves strength, flexibility, and workability.
Textiles / Packaging: Sizing Agents, Emulsifiers, Water-soluble Films — Film-forming, abrasion-resistant, easily soluble.
Packaging: 25 kg/bag (Kraft paper / Woven plastic bag).
Note： PVA 2488 should be stored in a dry, well-ventilated area, sheltered from direct sunlight and moisture, with attention required during transportation to protect it from rain and other weather elements.
