Vinyl resin VAMA
1.Property:
It is carboxyl modified ternary copolymer of vinyl chloride, vinyl Acetate ester & maleic acid. Its high molecular resin. Molecular weight: 27000. It is soluble in correspondingly strong solvent & thinner composition, for example, 50% ketone 50% aromatic hydrocarbon, produce 25 28% (solid count) resin solution. As there is carboxyl -COOH in its molecule, VMCH has perfect adhesion power with the surface of metal, paper, carpentry, treated PE, PP, PET & PVC. It has very good chemical resistance, can resist acid, alkali, oil under normal temperature.
2.Application:
VAMA is mainly used for air-dry finishing paint, for example, repair paint, vessel paint, metal / can / beer paint, wood & glass coating, aluminum foil varnish, etc. Also can be used for making ink, adhesive (metal with metal, metal with PVC/PET), heat-seal packing paint (medicine packing, cigarette packing), glue for vitamine C packing, etc. It is complying with the standard of food & medical contact.
3.Specification:
composition: 85%±3% vinyl chloride; 14%±2% vinyl acetate; 1%±0.2% maleic acid;
K Value: 50 ± 2
Fineness (passing 40mesh): 100%
Apparent density: 0.45 0.5 V
olatile matter: 1% max
Black point: 10 numbers / 100g max
Solubility (in 20% methyl ethyl ketone toluene solution): colorless & transparent
4.Packing:25kgs per bag
