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Poly(1-vinylpyrrolidone-co-vinyl acetate) VA64 CAS 25086-89-9

Molecular formula
EINECS number
Molecular weight
Warranty period
2 years
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VA64 is a copolymer of vinylpyrrolidone and vinyl acetate. It is a white to milky white powder, easily absorbs moisture, and is soluble in water, ethanol and other organic solvents.

We are professional manufacturer of VA64 in China, engaged in the R&D, production and sales of VA64. Unilong can supply different grades including industrial and USP26 grades with high quality to meet your application.



Appearance White or slightly yellow hygroscopic powder or flakes
Solubility Soluble in water, 96% ethanol or chloroform
Identify A, B Meet the requirments
Solution Appearance Clear to cloudy
PH 3.0-7.0
Aldehyde ppm ≤500
Peroxide ppm ≤ 400
NVP ppm ≤ 10.0
Vinyl acetate ppm ≤ 5.0
Saponification value mg/g 230-270
Residue on ignition% ≤ 0.1
Vinyl acetate% 35.3-42.0
Hydrazine ppm ≤ 1.0


Pharmaceutical field: VA64 is mainly used as a water-soluble adhesive and a dry adhesive, used in film coatings and in taste-masking agents.

Industrial field: VP/VA copolymer is used in industry as a rewetting adhesive, an adhesive for paper, an adhesive for coatings, a thickener and protective colloid for various inks,

Emulsifiers and protective colloids commonly used in plant protection agents.

Features and Benefits

VA64 is a water-soluble polymer resin with good adhesion, hygroscopicity, film-forming properties and surface activity.


25kgs/drum, 9tons/20’container
25kgs/bag, 20tons/20’container


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Unilong®️ Group specializes in the research, development, production and operation of biological materials and green solvents. It is a high-tech enterprise integrating the research, development and production of new environmentally friendly and degradable materials.

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