Polyvinyl Acetate (PVAc)

Discover the right Polyvinyl Acetate (PVAc) for your application

Synthomer offers  a broad portfolio of polyvinyl acetate and poly vinyl alcohols, homopolymers and co-polymers, to meet a variety of needs in diverse markets. 

 

Our polyvinyl acetate homopolymers and acid copolymers are thermoplastic solids supplied in a variety of molecular weights, typically in the form of small beads.  These polymers achieve improved performance in many applications including:

 

  • Polyester composites – providing superior shrink control and low profile effects in SMC, BMC and pultrusion moldings
  • High performing solvent based adhesives – including hobby, parquet and laminating adhesives

 

Additionally, Synthomer also supply specialised, ready to use polyvinyl acetate solutions. These are often used in the formulation of penetrating primers and for paper or fabric saturation.

 

Discover how Synthomer polyvinyl acetates can benefit your adhesive, sealant and polyester composite applications

  • Thermoplastic and adhesive.
  • Very low odour.
  • Good compatibility with plasticisers.
  • Wide range of solvent solubilities.
  • Convenient, time-saving ready to use PVOH solutions available.

The advantage of using Synthomer’s hydrolysed PVAc grades

In addition to polyvinyl acetate (PVAc), Synthomer also manufactures a variety of hydrolysed grades otherwise known as polyvinyl alcohol (PVOH).  These are available in both solid and liquid form - including fully water dilutable products.

Particular grades offer benefits in specific applications that include: 

  • Water soluble adhesives
  • Water sensitive reprographic film coatings
  • Ink receptive coatings
  • Seed coatings

Our PVAc and PVOH grades span a wide range of hydrolysis degrees, unique molecular structures and molecular weights resulting in a wide variety of key properties, lending themselves to be used in a multitude of applications. 

  • Thermoplastic and adhesive.
  • Very low odour.
  • Good compatibility with plasticisers.
  • Wide range of solvent solubilities.
  • Convenient, time-saving ready to use PVOH solutions available.

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Recommended Products

Tradename Chemistry Description
ALCOTEX™ 864 PVOH Alcotex 864 is a polyvinyl alcohol, internally plasticized and supplied in a water solution. Alcotex 864 has a medium high hydrolysis level and a low molecular weight.   FEATURES Aqueous solution. Forms very flexible films when dry. Dry films can be easily dissolved. Very receptive to ink jet printing inks. The dry film can be insolublised by crosslinking. Non-ionic copolymer.   Alcotex 864 is manufactured on a dedicated polymerisation plant in Harlow, England.
ALCOTEX™ 975 PVOH Alcotex 975 is an internally plasticized polyvinyl alcohol supplied in a solvent system of water and propan-1-ol. Alcotex 975 has a high hydrolysis level and a medium molecular weight.   FEATURES Ready to use solution. Forms very flexible films when dry. Dry films can be easily dissolved. Very receptive to ink jet printing inks. The dry film can be insolublised by crosslinking. Non-ionic copolymer.   Alcotex 975 is manufactured on a dedicated polymerisation plant in Harlow, England.
M30 PVAC M30 is a low molecular weight, solid polyvinyl acetate. It is designed for use in solvent based coatings, inks and adhesives or melt extrusion systems. M30 can also be used as a low profile additive in unsaturated polyester composites, typically pultrusion and BMC processes.   FEATURES Rapidly dissolves in most organic solvents. Can be melt processed. Easily plasticised. Can be combined with other M Grades. Excellent substrate adhesion & film flexibility. Very high light stability.   M30 is manufactured on a dedicated polymerisation plant and is produced in the form of colourless beads.
M35-73 SOLUTION PVAC M35/73 Solution is a copolymer of vinyl acetate and dibutyl maleate dissolved in ethyl acetate. It is designed for use mainly in solvent based coatings, where it can be diluted for use as a highly efficient primer and sealer.   FEATURES Miscible with most organic solvents Very high resistance to hydrolysis Solution polymer Rapid penetration and binding Excellent low temperature heat seal   M35/73 Solution is manufactured on a dedicated polymerisation plant and is produced in the form of a colourless solution.
M40 PVAC M40 is a medium molecular weight, solid polyvinyl acetate. It is designed for use in solvent based coatings, inks and adhesives or melt extrusion systems. M40 can also be used as a low profile additive in unsaturated polyester composites, typically pultrusion and BMC processes.   FEATURES Rapidly dissolves in most organic solvents including styrene Can be melt processed Easily plasticised Can be combined with other M Grades Excellent low profile performance in BMC & pultrusion processes   M40 is manufactured on a dedicated polymerisation plant and is produced in the form of colourless beads.
M50 PVAC M50 is a medium molecular weight, solid polyvinyl acetate. It is designed for use in solvent based general purpose or parquet adhesives, coatings and inks, melt extrusion systems such as automotive sound damping foils and as a B side carrier in polyester SMC manufacture.   FEATURES Rapidly dissolves in most organic solvents. Can be melt processed. Easily plasticised. Can be combined with other M Grades. Excellent adhesion to a wide range of substrates. Very high UV & light stability.   M50 is manufactured on a dedicated polymerisation plant and is produced in the form of colourless beads.
M60 PVAC M60 is a medium high molecular weight, solid polyvinyl acetate. It is designed for use in solvent based coatings, inks and adhesives or melt extrusion systems such as automotive sound damping foils.   FEATURES Rapidly dissolves in most organic solvents. Can be melt processed. Easily plasticised. Can be combined with other M Grades. Excellent adhesion to a wide range of substrates. Very high light and thermal stability.   M60 is manufactured on a dedicated polymerisation plant and is produced in the form of colourless beads.
MCT5 PVAC MCT5 is a low molecular weight, solid copolymer of vinyl acetate and crotonic acid. It is an extremely versatile polymer soluble in both solvent and alkaline aqueous systems.   FEATURES Rapidly dissolves in most organic solvents Dissolves in aqueous systems at pH >7.0 Can be melt processed and plasticised Crosslinkable Can be combined with other M Grades Very high adhesion to metals and plastics High light stability   MCT5 is manufactured on a dedicated polymerisation plant and is produced in the form of clear, slightly yellow granules.

Discover how Synthomer’s polyvinyl acetates can help improve your adhesive, sealant and polyester composite applications

If you’d like to find out more, please contact our technical team to help find the right solution for you: pvac@synthomer.com

Alternatively, you can call our Harlow (UK) site on : +44 (0) 1279 436 211

 

 

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