High-Performance Hydroxyfunctional Polyacrylic Dispersion with Weathering Resistance​

​Product Description​​
WL-AD391 is a water-based hydroxyl acrylic dispersion designed for formulating high-performance two-component polyurethane coatings when combined with water-based isocyanate curing agents. Ideal for topcoats and clear coats on metal and wood substrates.
​​Features​​: High hydroxyl content, rapid hardness development, high cross-linking density, excellent weathering/chemical resistance, and superior decorative properties.
​​Note​​: This dispersion can directly substitute ​​Bayhydrol A2695​​.
​​Applications​​: Compatible with low-viscosity hydrophilized hardeners for high-quality coatings on metal, plastic, and wood surfaces.

​​Physical Properties​​

​​Application Guidelines​​

1. ​​Formulation Recommendations​​

   • ​​Resin (Component A) Solvents​​: DPNB, PNB, DBG, BG, etc.
   • ​​Curing Agent (Component B) Solvents​​: PGDA, PMA, PMA + DBE (1:1 or 1:2 ratio).
   • ​​Critical Note​​: High initial viscosity of mixed components reduces pot life.

2. ​​Processing Stability​​
   ​​Not recommended for color paste grinding​​: Mechanical stress during grinding may compromise dispersion stability.

​​Packaging​​

200 kg/drum (Actual packaging subject to order specifications).

​​Important Notice​​
Performance may vary based on application conditions and formulation ratios. Process validation is strongly recommended prior to full-scale production.

​​Key Consistency Checks​​:

• All specifications (e.g., 42 ± 1%, 5.0% hydroxyl) preserved verbatim.
• Warnings on grinding stability, viscosity effects, and Bayhydrol substitution maintained without modification.
• Technical terminology standardized (e.g., "hydrophilized hardener," "pot life," "non-volatile content").
• Neutral tone and industrial documentation style retained.