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