PVA 2499

PVA 2499 is a type of High viscosity and Full Hydrolyzed Polyvinyl Alcohol. It’s widely utilized across industries requiring high-performance, water-soluble polymers with reliable mechanical and chemical properties. It is a water-soluble synthetic polymer derived from the hydrolysis of polyvinyl acetate. It is characterized by its high degree of hydrolysis (approximately 99 mole%) and specific polymerization degree, which contribute to its excellent film-forming, adhesive and emulsifying properties.

Key Characteristics
Appearance: White granular or powdery solid.
Solubility: Readily dissolves in hot water (85–95°C) but exhibits limited solubility in cold water.
Viscosity: high viscosity in aqueous solutions, depending on concentration and temperature.
Stability: Chemically stable, non-toxic, and biodegradable under specific conditions.

Descriptions

Equivalent Grades:

Product Parameter (Specification)

Item	Index
Hydrolysis (mole %)	98.0 ~ 99.9
Viscosity (mPa.s)	56.0 ~ 69.0
Volatile (wt%)	≤ 5.0
Ash (wt%)	≤ 0.5
pH Value	5 ~ 7
Purity (%)	≥ 93.5
Particle Size	Flake, 10 ~ 80mesh

Application:

Adhesive for screen printing,
Remoistenable Adhesive in Paper Industry.
PVA Sponge, Emery wheel & grinding material.
Resin Finishing Agent: Hard Finishing, Crease and Shrinking Resistant.
Polymer Industry: Protective colloid for PVAc emulsion, suspending agent for Polystyrene.
Architecture: Adhesive for forming Board.
Modified PVA: Butyralized PVA (PVB)

Packing:

Kraft paper package with plastic film inside, 20kg/25kg per bag, or woven bag 500KG per bag.

Storage:

The products should be stock indoor where room temperature is 5-30℃, dry & well-ventilated place, storage by batches. Keep away from the power, prevent humid, and avoid sun exposure. It is strictly forbidden to store together with volatile chemicals to prevent adsorption deterioration.

Transportation:

When transporting, clean vehicles are required, need pay attention to avoid moisture, rain and sun protection. Handle with care to prevent damage the packaging. It is strictly forbidden to store together with volatile chemicals to prevent adsorption deterioration

FAQ

Quality guarantee: Quality is strictly meet with contract/PI requirement.

Technical support: Any technical question will be solved within 24 hours by email or telephone.

Prompt delivery: The order will be prompt delivered within 15 days.

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