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KURARAY POVAL 26-88 is a water-soluble, partially saponified, polyvinyl alcohol (PVOH) grade manufactured by alcoholysis of polyvinyl acetate.
KURARAY POVAL 26-88 is suitable for modification of emulsion adhesives and remoistenable adhesives in the paper processing industry.
KURARAY POVAL 26-88 is designed for applications requiring enhanced viscosity, improved mechanical strength, and stable performance in aqueous systems.
CAS Number: 9002-89-5
EC Number: 200-778-4
Chemical Formula: (C₂H₄O)n
Synonyms: Polyvinyl alcohol, PVA, PVOH, Poly(vinyl alcohol), Vinyl alcohol polymer, Polyethenol, Hydrolyzed polyvinyl acetate, Partially hydrolyzed PVA, PVAL, Elvanol, Gohsenol, Mowiol, Airvol, Selvol, Alcotex
KURARAY POVAL 26-88 is a water-soluble, partially hydrolyzed polyvinyl alcohol (PVOH) resin produced by Kuraray.
KURARAY POVAL 26-88 is a non-ionic polymer with relatively high viscosity, offering excellent film-forming ability, strong adhesion, and high cohesion.
KURARAY POVAL 26-88 is designed for applications requiring enhanced viscosity, improved mechanical strength, and stable performance in aqueous systems.
KURARAY POVAL 26-88 is a partially saponified grade of polyvinyl alcohol.
KURARAY POVAL 26-88 is supplied as fine powder/granules with defined grain size.
KURARAY POVAL is recommended for a variety of uses, ranging from emulsion polymerization aids to binders for pigments in paper applications.
KURARAY POVAL has a viscosity of 24.5 - 27.5 mPa.s.
KURARAY POVAL is the brand name of Kuraray’s globally produced polyvinyl alcohol (PVOH).
KURARAY POVAL features an extremely wide-ranging field of applications.
The main uses are in the paper, adhesive, textile and construction industries, as well as in ceramics, packaging and electronics.
The physical and chemical properties make PVOH very versatile.
KURARAY POVAL 26-88 features water-solubility, excellent film forming characteristics, high tensile strength and elasticity, as well as resistance against organic solvents and dispersing power.
KURARAY POVAL 26-88 is a water-soluble, partially saponified, polyvinyl alcohol (PVOH) grade manufactured by alcoholysis of polyvinyl acetate.
KURARAY POVAL 26-88 possesses uniform chemical structure and good adhesion.
KURARAY POVAL 26-88 is used as adhesive promoter and protective colloids in the polymerization of polymer emulsions.
KURARAY POVAL 26-88 is suitable for modification of emulsion adhesives and remoistenable adhesives in the paper processing industry.
Aqueous solution of KURARAY POVAL 26-88 can be added to polymer emulsion which is already stabilized with polyvinyl alcohol to extend the open time, increase setting speed and influence the rheology.
KURARAY POVAL 26-88 is designed for use in postage stamps & labels, envelopes and Jiffy®-type bags.
KURARAY POVAL 26-88 can be stored for 12 months from the date of shipment.
KURARAY POVAL 26-88 is an odor-free material used in adhesives and sealants and paints and coatings as an auxiliary agent, binder and resin, dispersant, and protective colloid agent, supplied in granule and powder form.
KURARAY POVAL 26-88 is a water soluble polymer with a viscosity of 24.5-27.5 mPa.s and a degree of hydrolysis of 87.0-89.0 mol%.
KURARAY POVAL 26-88 has low methanol content < 0.3%, making it suitable for personal care applications.
KURARAY POVAL 22-88 LV acts as an excellent film former and adhesion promoter.
KURARAY POVAL 26-88 can be used to develop peel-off face masks, mascara, and other personal care products which adhere well to the skin, dry fast and can be removed in one piece.
KURARAY POVAL 26-88's biodegradable nature makes it an eco-friendly choice for personal care products.
KURARAY POVAL 26-88 is a water-soluble, partially saponified, polyvinyl alcohol (PVOH) grade manufactured by alcoholysis of polyvinyl acetate.
KURARAY POVAL 26-88 exhibits uniform chemical structure and good adhesion.
Aqueous solution of KURARAY POVAL 26-88 can be added to polymer emulsion which is already stabilized with polyvinyl alcohol to extend the open time, increase setting speed and influence the rheology.
KURARAY POVAL 26-88 is suitable as emulsion polymerization aid to binder in paper applications.
KURARAY POVAL 26-88 is recommended for the modification of emulsion adhesives, remoistenable adhesives and protective colloid emulsion polymerization.
KURARAY POVAL 26-88 can be stored for 12 months from the date of shipment.
Uses of KURARAY POVAL 26-88:
KURARAY POVAL 26-88 is widely used in water-based adhesive formulations as an effective adhesive promoter, providing strong bonding performance and higher viscosity control.
KURARAY POVAL 26-88 is commonly applied in remoistenable adhesive systems such as envelopes, labels, and paper converting products due to its excellent film-forming and cohesive properties.
KURARAY POVAL 26-88 also functions as a protective colloid in emulsion polymerization to stabilize polymer dispersions and is used as a binder for pigments, fillers, and fibers in coatings and paper applications, especially in systems requiring higher viscosity and enhanced mechanical strength.
Advantages of KURARAY POVAL 26-88:
High viscosity provides excellent formulation control and stability
Strong film-forming ability ensures durable and uniform coatings
High adhesion to fibers, pigments, and fillers
Excellent cohesion improves mechanical strength of films
Water-soluble and easy to process in aqueous systems
Non-ionic structure ensures broad formulation compatibility
Effective as protective colloid in emulsion polymerization
Improves open time and setting characteristics in adhesive systems
Stability and Reactivity of KURARAY POVAL 26-88:
Chemical stability:
Stable.
Reactivity:
Low.
Avoid strong oxidizing agents.
Conditions to avoid:
Heat.
Ignition sources.
Moisture.
Dust formation.
Incompatible materials:
Strong oxidizers.
Hazardous decomposition:
Carbon monoxide (CO) may form.
Carbon dioxide (CO₂) may be generated.
Irritating fumes may be released.
Handling and Storage of KURARAY POVAL 26-88:
Handling:
Avoid dust inhalation.
Avoid eye contact.
Use good industrial hygiene practices.
Storage:
Store in a cool, dry, and well-ventilated place.
Keep container tightly closed.
First Aid Measures of KURARAY POVAL 26-88:
Inhalation:
Move to fresh air.
Skin contact:
Rinse thoroughly with water.
Eye contact:
Rinse thoroughly with water.
Ingestion:
Rinse mouth.
Seek medical advice if necessary.
Firefighting Measures of KURARAY POVAL 26-88:
Suitable extinguishing media:
Water spray.
Foam.
Carbon dioxide (CO₂).
Dry chemical.
Hazards:
Dust explosion risk may be present.
Toxic fumes may be released during combustion.
Protection:
Use self-contained breathing apparatus.
Accidental Release Measures of KURARAY POVAL 26-88:
Precautions:
Avoid dust generation.
Ensure adequate ventilation.
Cleanup:
Sweep or vacuum spilled material.
Collect into suitable containers.
Exposure Controls / Personal Protection of KURARAY POVAL 26-88:
Ventilation:
Provide adequate ventilation.
Personal protective equipment:
Use gloves.
Use safety glasses.
Use dust mask or respirator if needed.
Identifiers of KURARAY POVAL 26-88:
CAS number: 9002-89-5
EC number: 200-778-4
Chemical formula: (C₂H₄O)n
Chemical type: Partially hydrolyzed polyvinyl alcohol
Grade designation: 26-88 (≈26 mPa·s, ~88% hydrolysis)
Properties of KURARAY POVAL 26-88:
Appearance: White to off-white powder or granules
Odor: Odorless
Solubility: Soluble in water; insoluble in most organic solvents
pH (4% solution): Approximately 5–7
Viscosity (4% solution): ~26 mPa·s
Degree of hydrolysis: ~86.5–89.0 mol%
Density: ~1.2–1.3 g/cm³
Melting point: Decomposes before melting (~180–230°C)
Film forming: Excellent film-forming properties
Ionic character: Non-ionic
Moisture sensitivity: Hygroscopic
