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Construction Chemistry
Polyvinyl Alcohol 2488
Formula:
(C2H4O)n
GOST/CAS:
CAS 9002-89-5
Polyvinyl Alcohol 2488 (PVA 2488) is a premium grade, partially hydrolyzed, water-soluble polymer available in a white powder or granular form. The product features exceptional adhesive properties, high binding capacity, excellent film flexibility, and superb resistance to oils, greases, and solvents. Due to its controlled viscosity and outstanding compatibility with mineral binders, PVA 2488 serves as an indispensable additive for modifying dry-mix mortars and specialized technical solutions in the modern chemical industry.
Applications
Construction Chemicals: Utilized as a high-performance modifying and water-retaining additive in dry-mix mortars (tile adhesives, plasters, wall putties, and self-leveling compounds). It significantly enhances the adhesion, plasticity, and overall strength of the cured mortar.
Adhesives Production: Acts as a core component or a highly effective thickener in the formulation of PVA glues, wallpaper adhesives, and wood/paper/cardboard bonding agents, ensuring rapid tack and superior bond strength.
Textile and Paper Industries: Extensively used for warp yarn sizing (improving tensile strength and abrasion resistance of fibers) and surface sizing/coating of paper to boost structural strength, smoothness, and barrier resistance to oily substances.
Polymerization Industry: Functions as an excellent protective colloid and emulsion stabilizer during the suspension polymerization of vinyl acetate and various other monomers.
Key Advantages
Exceptional Adhesion & Binding: Forms highly robust intermolecular bonds, drastically improving the mechanical adhesion of cementitious mortars to all types of substrates.
High Film Flexibility: Forms a clear, flexible, and tear-resistant protective film upon drying, preventing surface shrinkage cracks.
Stable Water Retention: Delays water evaporation from open mortars, ensuring complete cement hydration and effectively extending the working open time.
Chemical Stability & Safety: Fully biodegradable, non-toxic, and resistant to most organic solvents, greases, and oils.
Storage & Transportation
- Store in dry, clean, and cool warehouse environments in tightly sealed original packaging. Keep protected from moisture, direct sunlight, and heat sources.
- The product is highly hygroscopic. Avoid storing in damaged packaging to prevent material caking and clumping.
- Transportable by all modes of covered transport in strict compliance with cargo rules to prevent moisture exposure. The material is classified as non-hazardous for transport (Non-ADR).
- Shelf Life: 2 years from the date of manufacture.
Frequently bought together
Technical Specifications
Appearance
Odorless, white to light yellowish powder or granules
Degree of Hydrolysis
87.0% – 89.0%
Viscosity (4% Aqueous Sol., 20°C)
20.0 – 28.0 mPa·s
Volatile Matter (Moisture)
max. 5.0%
Ash Content
max. 0.5%
pH (4% Aqueous Solution)
5.0 – 7.0
Purity (Main Substance)
min. 93.5%
Supply info
- Multi-layer kraft paper bags with an inner PE liner: 20 kg / 25 kg.
- Big Bags (FIBC) for large-scale industrial operations: 500 kg / 1000 kg.
- Bulk delivery in liquid road tankers (for pre-formulated aqueous solutions) available upon request.