PANGAO HVAMA Carboxyl-Modified Ternary VC-VAc Resin, Ultra-High Molecular Weight, High Carboxyl Content, for Air-Dry Topcoats, Marine Paints, Metal Coatings, Wood & Glass Coatings

Full Name & Product Positioning Full Name:  PANGAO HVAMA Carboxyl-Modified Vinyl Chloride-Vinyl Acetate-Maleic Acid Terpolymer Resin (Ultra-High Molecular Weight) Ultra-high molecular weight high carboxyl content ternary VC-VAc copolymer industrial resin, approximately 84% vinyl chloride, 13% vinyl acetate, and 3% maleic acid. With relatively high carboxyl content, it provides improved adhesion for smooth substrates such as metal. Typically dissolved in relatively strong solvent/diluent system combinations. Suitable for air-dry topcoats, maintenance paints, marine paints, metal coatings, wood and glass coatings, rowing glue, and related solvent-based formulations. Core Technical Parameters   Appearance White free-flowing powder Vinyl Chloride Content ~84 wt% Vinyl Acetate Content ~13 wt% Maleic Acid Content ~3 wt% Carboxyl Functional Group Content ~3 wt% (high carboxyl) K-Value ~48-52 (ultra-high molecular weight) Average Molecular Weight ~30,000-35,000   Glass Transition Temperature ~60-75°C   Solid Content 100 wt% Volatile Matter ≤1%   Standard Packaging 25kg paper-plastic composite bag Core Advantages 1.  Ultra-high molecular weight structure provides potential for improved film strength, chemical resistance, and abrasion resistance. 2.  High carboxyl content (~3%) provides corresponding adhesion improvement for smooth substrates such as metal. 3.  Film exhibits corresponding water, oil, dilute acid, and alkali resistance characteristics. 4.  Provides adhesion improvement for wood, glass, concrete, and other substrates. 5.  Compatible with various film-forming resins, suitable for air-dry heavy-duty anti-corrosion coating formulations. Main Application Areas Core Applications:  Air-dry topcoats, marine paints, metal coatings, wood and glass coatings Suitable Areas:  Maintenance paints, heavy-duty anti-corrosion coatings, rowing glue, concrete coatings, industrial protective coatings Not Recommended:  Pure water-based systems, food contact products, low-solids fast-drying formulations, pure ester single-solvent systems, high-flexibility soft film formulations.