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

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.