Wacker VINNOL H40/60 VC/VAc Resin — High Vinyl Acetate VC/VAc Copolymer for Solvent-Based Coatings, Printing Inks and Heat-Seal Coatings, 25 kg Original Packaging
Wacker VINNOL H40/60 VC/VAc Resin — High Vinyl Acetate VC/VAc Copolymer for Solvent-Based Coatings, Printing Inks and Heat-Seal Coatings, 25 kg Original Packaging
Full name and product positioning
Product full name: Wacker VINNOL® H 40/60 vinyl chloride-vinyl acetate copolymer resin (commonly known as VC/VAc resin)
VINNOL® H 40/60 is a vinyl chloride-vinyl acetate binary copolymer produced by Wacker (Germany) using suspension polymerization, with a vinyl acetate content of approx. 39 wt%. It belongs to the higher-viscosity, more flexible grades of the VINNOL H40 series. It can be used as a binder or copolymer binder for solvent-based coatings, printing inks and adhesives, and can also be dissolved in various acrylic monomers for modifying solvent-free systems.
Core technical parameters
|
Parameter |
Typical value / range |
|
Appearance |
White powder |
|
Vinyl chloride (VC) content |
Approx. 61 wt% |
|
Vinyl acetate (VAc) content |
Approx. 39 wt% |
|
Chlorine content |
34.0 – 35.2 wt% |
|
K value |
59 – 61 |
|
Solution viscosity (20% MEK solution, 20 °C) |
150 – 210 mPa·s |
|
Flow time (20% MEK solution) |
Approx. 145 s |
|
Volatile content |
< 2.0 wt% |
|
Glass transition temperature Tg |
Approx. 62 °C |
|
Weight-average molecular weight Mw |
100,000 – 140,000 g/mol |
|
Density |
1.31 g/cm³ |
|
Bulk density |
Approx. 750 kg/m³ |
|
Particle size |
< 1.0 mm |
|
Solubility |
Ketones are good solvents; esters dissolve it alone; soluble in styrene, MMA, acrylate and other monomers; insoluble in alcohols and aliphatic hydrocarbons |
|
Food-contact compliance |
Complies with FDA 21 CFR §175.105 and §175.300 (used in the corresponding applications) |
|
Packaging |
25 kg/bag |
Core advantages
· High vinyl acetate content gives good film flexibility and can help lower the heat-seal temperature and softening point
· Can be dissolved alone in ester solvents and is also soluble in monomers such as styrene, methyl methacrylate and acrylates, making it convenient as an additive in solvent-free pure-monomer systems
· Compatible with ester-soluble nitrocellulose in a 50/50 ratio range, which helps modify NC systems
· Fully compatible with other VINNOL® series resins; viscosity, flexibility and heat-seal performance can be adjusted by blending
· Films offer good abrasion resistance, water resistance, oil resistance and resistance to dilute acids and alkalis, salt water and brine
Main application areas
· Core applications: solvent-based printing inks, paper and film coatings, strippable protective lacquers, heat-sealable coatings, wood varnishes, architectural mortar paints, road-marking paints
· Suitable areas: copolymer binder for flexible ink formulations, solubilization in weak-solvent (ester / glycol ester / glycol ether) systems, adhesion and pigment-wetting modification for solvent-free pure-monomer UV / monomer systems
· Not recommended: direct blending with alkyd resins, polyvinyl acetal or polyvinyl butyral (generally incompatible); avoid pigments containing zinc, cadmium and iron oxides (they may catalyze decomposition of VC copolymers at high temperature); avoid direct contact with iron containers to prevent discoloration; long-term outdoor use requires separate blending with weathering stabilizers