Wacker VINNOL H15/50 Vinyl Chloride-Vinyl Acetate Copolymer Resin for Heat-Seal Coatings, Screen / Gravure Printing and Strippable Coatings
Wacker VINNOL H15/50 Vinyl Chloride-Vinyl Acetate Copolymer Resin for Heat-Seal Coatings, Screen / Gravure Printing and Strippable Coatings
Full name and product positioning
Product full name: Wacker VINNOL® H15/50 vinyl chloride-vinyl acetate copolymer resin (VC/VAc resin, binary copolymer)
VINNOL® H15/50 is Wacker's classic vinyl chloride / vinyl acetate binary copolymer resin. It contains approx. 85 wt% vinyl chloride and 15 wt% vinyl acetate with a K value of approx. 50 and medium solution viscosity. As a physically drying thermoplastic binder it forms tough films with low water absorption and low gas permeability, and it adheres well to many substrates. It is widely used in heat-seal coatings, screen / gravure / pad / transfer printing inks and strippable protective coatings.
Core technical parameters
|
Parameter |
Typical value / range |
|
Appearance / supply form |
White powder |
|
Vinyl chloride (VC) content |
Approx. 85 wt% |
|
Vinyl acetate (VAc) content |
Approx. 15 wt% |
|
Free hydroxyl content |
— (no hydroxyl; not a functionalized grade) |
|
K value |
49 – 51 |
|
Solution viscosity (20% MEK, 20 °C) |
60 – 80 mPa·s |
|
Flow time (20% MEK) |
Approx. 66 s |
|
Chlorine content |
47.7 – 48.9 wt% |
|
Glass transition temperature Tg |
Approx. 74 °C |
|
Density |
Approx. 1.37 g/cm³ |
|
Bulk density |
Approx. 750 kg/m³ |
|
Weight-average molecular weight Mw |
60,000 – 80,000 g/mol |
|
Volatile content |
< 1.0 wt% |
|
Particle size |
< 1.0 mm |
|
Solubility |
Ketones and esters are common true solvents; insoluble in alcohols and aliphatic hydrocarbons; aromatic hydrocarbons can be used together with true solvents |
|
Food contact / FDA |
— (to be confirmed with the Wacker account manager) |
|
Packaging |
25 kg three-layer kraft paper bag |
|
Storage conditions |
Dry, sealed at room temperature (<25 °C); shelf life ≥ 12 months |
Core advantages
· Tough and flexible films with low water absorption and low gas permeability, helping to improve the mechanical properties and water resistance of coatings
· Good resistance to oils, greases, dilute acids, dilute alkalis, salt water, aliphatic hydrocarbons and alcohols, making it suitable as a protective and heat-seal binder
· Good adhesion to metals, PVC, paper, films and other substrates; suitable for heat-seal coatings, screen / gravure inks and transfer hot-stamping
· Good compatibility with other VINNOL® surface coating resins; blending with low-viscosity grades can adjust system viscosity and film properties
· Fine particles (<1.0 mm) and stable bulk density make feeding, metering and solvent dissolution convenient, offering good processing convenience
Main application areas
· Core applications: heat-seal coatings, screen-printing inks, gravure inks, pad-printing inks, transfer inks
· Suitable areas: strippable protective coatings, plastic coatings, industrial wood coatings, paper and film coatings, protective and architectural coatings, leather inks, adhesives
· Not recommended: systems used alone for long-term outdoor exposure without UV / heat stabilizers; direct food contact (FDA compliance is not marked in the TDS); long-term coexistence with zinc, cadmium or iron oxide pigments at high temperature, to reduce the risk of resin decomposition and discoloration; alcohols and aliphatic hydrocarbons do not dissolve this product