PVA — Polyvinyl Alcohol

A water-soluble, non-toxic polymer that delivers strong bonding, transparent film forming and reliable emulsification for adhesives, paper, textile, cement and coatings.

CAS No. 9002-89-5 HS Code 3905.30 (CN export 3905300000) EINECS 209-183-3

A Heavy Polymer with a Light Footprint

PVA is a non-toxic, odourless, water-soluble polymer that forms strong transparent films with excellent bonding to cement, paper, textile and fibers. It is also a stable emulsifier and protective colloid for many industrial systems.

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Water-soluble polymer — dissolves in warm water to form a clear, viscous solution with reliable film building.

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Strong bond strength — improves cohesion of cementitious systems, paper coatings and wood adhesives.

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Film forming — tough, flexible, transparent films with good oil, grease and hydrocarbon resistance.

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Emulsifier & stabilizer — protective colloid for PVAc emulsions and other polymer dispersions.

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Reactive polyol chemistry — typical polyol behaviour; can undergo esterification, etherification and acetalization for specialty derivatives.

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Non-toxic & biodegradable — safe to handle in normal conditions; environmentally friendly water-soluble polymer.

Technical Data

Typical Specifications

Property	Typical Value
Chemical name	Polyvinyl alcohol (PVA / PVOH)
CAS No.	9002-89-5
EINECS	209-183-3
HS Code	3905.30 (CN export 3905300000)
Molecular formula	(C₂H₄O)_n
Appearance	White or light-yellow flocculent / granular / powder
Toxicity	Non-toxic, odourless, harmless
Solubility	Soluble in warm water; insoluble in most organic solvents
Degree of hydrolysis	86.0 ~ 90.0 mol% (partially hydrolyzed)
Viscosity (4% solution, 20°C)	20 ~ 60 mPa·s (per grade)
Volatile content	≤ 7.0%
Ash content	≤ 7.0%
pH (4% solution)	5.0 ~ 7.0
Packaging	25 kg PP woven bag

Values are typical ranges. Exact per-grade specification sheets are available on request.

Main Grades

PVA 1788 / 2488 / 2688

Three standard grades covering the most common viscosity and hydrolysis needs. Custom specifications available on request.

Grade	Hydrolysis (mol%)	Viscosity (cps, 4%)	Volatiles (%)	Ash (%)	pH
PVA 1788	86.0 ~ 90.0	20.0 ~ 26.0	≤ 7.0	≤ 7.0	5 ~ 7
PVA 2488	86.0 ~ 90.0	44.0 ~ 52.0	≤ 7.0	≤ 7.0	5 ~ 7
PVA 2688	86.0 ~ 90.0	48.0 ~ 58.0	≤ 7.0	≤ 7.0	5 ~ 7

Other grades (e.g. fully hydrolyzed 1799 / 2499, low-viscosity 0488 / 0888, ultra-high viscosity 2699) supplied on request.

Applications

Where PVA Works Best

Its water solubility, film strength and bonding power make PVA a workhorse across dry-mix mortar, coatings, adhesives and paper.

Cement and Mortar Additive

Film-forming additive for cement render, bonding slurry and repair mortar — improves cohesion, flexibility and adhesion.

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Wall Putty

Binder for interior and exterior putty, gypsum-based filler and general-purpose construction adhesive.

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Coatings

Surface sizing and pigment-coating binder for paper and board; film former for water-based coatings.

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Also used in: tile adhesive & bonding agent · gypsum plaster · self-leveling & screed · wood & paper adhesive · textile warp sizing · water-soluble films · emulsion polymerization.

Storage & Handling

How to Store PVA Properly

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Indoor, ventilated, dry room — keep bags away from direct sunlight, rain and dampness.

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Sealed after opening — PVA absorbs moisture from the air; reseal the bag tightly to keep volatiles and viscosity on spec.

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Stack on pallet — supplied on pallet for warehouse storage; standard export pallet is shrink-wrapped for ocean freight.

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No special hazardous-goods handling — non-toxic and non-dangerous, but standard PPE (mask, gloves) is recommended to avoid dust inhalation.

Lead Time & Sample

For standard grades in stock, shipment can be arranged within 7-10 days. For non-stock or customized specifications, allow 15-20 days after advance payment.

Free 200 g sample is available on request for quality evaluation — just tell us the hydrolysis (%) and end use you need.

Request Sample & Quote

Request PVA Quotation & Samples

Tell us the grade (e.g. 1788 / 2488), hydrolysis and quantity — we will quote within 24 hours.

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