Water-Based Hydroxy Acrylic Resin For Metal & Wood - Repaintable Primer Dispersion
WL-AD3944 is an aqueous hydroxyl-functional acrylic dispersion designed for high-performance 2-component polyurethane coatings.
Key features include:
Rapid Drying & Recoatability: Enables quick overcoating cycles, ideal for automotive refinishing and industrial maintenance;
Multi-Substrate Compatibility: Formulates topcoats for metal/plastic/wood and primers for plastic/wood substrates;
Curing Flexibility: Compatible with water-based isocyanates (primary) or solvent-based curing agents for floor coatings;
Automotive Focus: Optimized for vehicle refit and commercial fleet refinishing operations.
Physical Property:
|
Properties |
Units |
Values |
|
Appearance |
--- |
Milky liquid |
|
Viscosity |
mPa.s |
20-500 |
|
Solid Content |
% |
44-46 |
|
pH |
--- |
6.5-8.5 |
|
Hydroxyl content |
(reference value, %) |
2.2 |
The following are the characteristics of the paint film after WL-AD3944 reacts with the curing agent we produce:
| Test Items | WL-AD3944 | Comp |
| Gloss @ 20°C 60°C | 88/95 | 83/92 |
| Water Resistance @ 25°C | 240 | 120 |
| Acid Resistance | 780 | 120 |
| Alkali Resistance | 72 | 48 |
| Hardness (500g,nui) | 2H | H |
| BFFT(µm) | 100 | 85 |
Performance Features:
High cost performance
Fast drying speed
Good anti-flow performance
Good adhesion
High hardness
Dosage and Application Guidelines
WL-AD3944 demonstrates superior thixotropic behavior and rapid compatibility with co-solvents/thickeners.
Recommended Co-solvents: DPNB, PNB, DGBE, BCS, etc.
Curing Agent Options: PGDA or PMA+DBE blends (1:1/1:2 ratio)
Important Notes:
Post-mixing of Components A/B: Elevated initial viscosity will proportionally reduce working time.
Grinding Process Limitation: Avoid incorporating this resin during paste grinding due to stability risks caused by process variability.
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