Wacker VINNOL E22/48A Hydroxyl-Containing Ternary VC/VAc Resin — Vinyl Chloride Copolymer for Two-Component Coatings, Inks and Adhesives, 25 kg/bag
Wacker VINNOL E22/48A Hydroxyl-Containing Ternary VC/VAc Resin — Vinyl Chloride Copolymer for Two-Component Coatings, Inks and Adhesives, 25 kg/bag
Full name and product positioning
Product full name: Wacker VINNOL® E22/48A hydroxyl-containing vinyl chloride terpolymer resin (VC/VAc resin)
VINNOL® E22/48A is a hydroxyl-containing vinyl chloride / hydroxy acrylate / dicarboxylate terpolymer resin from Wacker (Germany), CAS No. 114653-42-8. Its molecular chain contains approx. 1.8 wt% free hydroxyl groups, so it can be used as a reactive resin or co-binder in two-component systems, crosslinking and curing with isocyanates, epoxy, amino resins and similar curing agents. It is used mainly as a film-forming binder for surface coatings and printing inks.
Core technical parameters
|
Parameter |
Typical value / range |
|
Appearance / supply form |
White granules (with a small amount of powder) |
|
Vinyl chloride (VC) content |
Approx. 75.0 ± 1.0 wt% |
|
Carboxylate / acrylate content |
Approx. 25.0 wt% |
|
Free hydroxyl content |
Approx. 1.8 ± 0.2 wt% |
|
Chlorine content |
42.0 – 43.2 wt% |
|
K value |
47 – 49 |
|
Solution viscosity (20% MEK, 20 °C) |
38 – 52 mPa·s |
|
Flow time (20% MEK) |
Approx. 46 s |
|
Glass transition temperature Tg |
Approx. 61 °C |
|
Weight-average molecular weight Mw |
60,000 – 80,000 g/mol |
|
Volatile content |
< 0.7 wt% |
|
Particle size |
< 2.5 mm |
|
Solubility |
Soluble in ketones (MEK, cyclohexanone, acetone) and esters; 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 |
|
Storage conditions |
Dry, sealed at room temperature (<25 °C); shelf life ≥ 12 months |
Core advantages
· The molecular chain contains approx. 1.8 wt% free hydroxyl groups and can be crosslinked with isocyanates, epoxy and amino resins, helping to improve film adhesion, chemical resistance and solvent resistance
· Good adhesion to many plastic substrates as well as metals and wood, helping to reduce insufficient substrate adhesion
· Films are hard yet flexible, abrasion- and weather-resistant, with good resistance to oils, greases, dilute acids, dilute alkalis, salt water, aliphatic hydrocarbons and alcohols
· Good compatibility with other VINNOL® surface coating resins, acrylics, ketone resins, epoxy, polyurethane and alkyd resins, which facilitates formulation design
· Can be dissolved alone in ketone and ester solvents with a wide processing window; film softness can be adjusted with plasticizers such as phthalates, adipates and phosphates
Main application areas
· Core applications: two-component coating systems, primers / intermediate coats, baking enamels, printing inks, adhesives, magnetic tape coatings
· Suitable areas: anti-corrosion coatings, coil coatings, marine and protective coatings, plastic coatings, industrial wood coatings, gravure / screen / pad / transfer inks, inkjet inks
· 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 high-temperature use together with pigments containing zinc, cadmium or iron oxides, to reduce the risk of resin decomposition and discoloration; alcohols and aliphatic hydrocarbon solvents do not dissolve this product