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.

 

  • 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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Group Tradename Chemistry Description
ALCOTEX ALCOTEX 359B PVOH Alcotex 359B is a partially hydrolysed polyvinyl acetate. It is supplied as a solvent based solution of approximate ratio 90:10 methanol / methyl acetate. Alcotex 359B has a blocky distribution of hydroxyl groups   FEATURES Ready to formulate solution Absorbs water High film strength Solvent based Highly ink receptive Non-ionic copolymer   Alcotex 359B is manufactured on a dedicated polymerisation plant in Harlow, England.
ALCOTEX 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 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.
ALCOTEX ALCOTEX WD100 PVOH Alcotex WD100 is an aqueous solution of a 43% hydrolysed polyvinyl alcohol. It has been specifically developed by Synthomer Ltd as a secondary suspending agent for vinyl chloride polymerisation. Infinitely dilutable in water, and with an extremely low methanol content, Alcotex WD100 offers increased PVC resin porosity and reduced levels of gels or ‘fish eyes’ when compared to traditional products.In optimised recipes, improvements can be obtained in the porosity/bulk density relationship. Better porosity facilitates both monomer removal and plasticiser uptake. These criteria are further enhanced when Alcotex WD100 is used with the Alcotex range of primary suspending agents.  Alcotex WD100 is also compatible with other conventional primary suspending agents. NMR measurements have shown that Alcotex WD100 has a random distribution of acetate groups. The data below represents typical values obtained with different batches of Alcotex WD100.
M30 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 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 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 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 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 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.
MCT5AMF MCT5AMF PVAC MCT5AMF solution is a copolymer of vinyl acetate and crotonic acid in an ammonia neutralised ethanol/water mixture. It is designed for use in the production of inks and coatings as well as modification of adhesives.   FEATURES Miscible with many organic solvents Solution polymer Rapid penetration and binding Excellent adhesion to metals   MCT5AMF is manufactured on a dedicated polymerisation plant and is produced in the form of a colourless to pale yellow, slightly hazy solution.

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

Contact our technical specialists for a no-obligation discussion of how Synthomer’s polyvinyl acetates can help improve your adhesive, sealant and polyester composite applications.

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