Nan Ya NPES 904 Epoxy Resin (CAS 25036-25-3) - Mid-High-Molecular Solid Bisphenol A Epoxy for Indoor Powder Coatings

Full Name: NPES 904 Mid-High Molecular Solid Bisphenol A Epoxy Resin Upgraded powder coating epoxy grade with higher epoxy equivalent than NPES903. Delivers higher surface gloss, film hardness and chemical resistance after curing, used for high-grade indoor metal decoration powder coating and epoxy ester baking paint. Core Technical Parameters Epoxy Equivalent Weight (EEW) 780 ~ 850 g/eq Softening Point 96 ~ 107 ℃ Melt Viscosity (150℃) 4500 ~ 8000 cps Gardner Color ≤1.0 Volatile Content ≤1.0 % Physical Form Transparent pale yellow solid flakes Standard Pack 25kg/bag CAS No. 25036-25-3   Core Advantages 1.  Higher molecular structure brings higher film hardness & scratch resistance after curing, long-term surface gloss retention. 2.  Moderate melt fluidity balance leveling and anti-sag performance, suitable for thick-film powder coating construction. 3.  Superior resistance to hand sweat, alcohol and detergent corrosion, ideal for office furniture & metal cabinet coating. 4.  Stable storage performance of mixed epoxy-polyester powder, less agglomeration under normal temperature stock. 5.  Dual-purpose for powder coating and solvent epoxy ester resin synthesis, improves paint film toughness and gloss. Main Application Fields Core Applications: High-gloss indoor epoxy-polyester hybrid powder coating, metal cabinet / office furniture powder paint, epoxy ester baking coating Compatible Applications: General industrial anti-corrosion primer, casting resin intermediate, plastic surface modification agent Forbidden Scenarios: Outdoor weather-resistant powder coating, food contact coating, ultra-high flexibility can interior coating Handling Precautions 1.  Powder coating baking condition: 190\ 205℃ / 10\ 15 mins to fully release gloss and hardness performance. 2.  Seal storage away from moisture; damp raw material will generate pinholes and shrinkage cavities after baking. 3.  Extrusion temperature controlled at 95~115℃, matching low-speed screw to guarantee uniform pigment dispersion. 4.  Mix with anti-yellowing additives when producing white powder coating to reduce high-temperature discoloration risk.