BYK-368 P is a polyacrylate-based powdered surface additive specifically designed for powder coatings. This additive is primarily used to enhance the surface quality of powder coatings by preventing common defects such as craters, fish eyes, and pinholes. Additionally, it optimizes the leveling properties, thereby reducing the orange peel effect and improving overall finish quality.
Key Features and Benefits:
- Anti-Cratering: Effectively prevents surface defects like fish eyes and pinholes.
- Improves Leveling: Reduces the orange peel effect, resulting in a smoother finish.
- Versatile: Suitable for critical powder coating systems and UV-curing powder coatings.
Applications:
- Powder Coatings:
- Epoxy-based coatings
- Polyester-based coatings
- Polyurethane-based coatings
- Acrylate-based coatings
- Polyester/epoxy combinations
Technical Specifications:
- Composition: Polyacrylate, adsorbed on silicon dioxide
- Acrylate Content: 63%
- Density (20 °C): 1.28 g/ml
- Residue after Calcining: 34%
- Supplied as: Powder
Recommended Use and Levels:
- Dosage: 0.5-1.5% additive (as supplied) based on the total formulation. Optimal levels should be determined through laboratory testing.
- Incorporation: Mix with resin, hardener, pigments, and other raw materials in a high-speed mixer, then extrude. Proper dispersion through the extruder promotes gloss and leveling, preventing craters, fish eyes, and seeds.
Add a review