English
Español
tiếng việt
русский
High hydroxyl functionality for excellent crosslink density with melamine and polyisocyanate curing agents.
Optimized molecular weight distribution for superior film formation, gloss, and mechanical durability.
Low volatile organic compound (VOC) content, supporting compliance with stringent environmental regulations.
Excellent compatibility with common solvent-based and high-solids coating systems.
Consistent batch-to-batch reproducibility ensuring reliable performance in industrial production.
Automotive OEM topcoats and clearcoats.
Industrial maintenance coatings for metal substrates.
General-purpose coil coatings requiring high weatherability and hardness.
High-performance wood and plastic finishes for furniture and electronics enclosures.
| Chemical Type | Hydroxyl-functional acrylic copolymer |
| Product Form | Liquid resin solution |
| Appearance | Clear, pale yellow to amber liquid |
| Solvent System | Xylene / butyl acetate blend |
| Hydroxyl Value (mg KOH/g) | 65–75 |
| Non-Volatile Content (% w/w) | 55–60 |
| Acid Value (mg KOH/g) | < 5 |
| Viscosity (25°C, mPa·s) | 800–1,200 |
Q1: What is the primary function of SETALUX 1921 BA-78 in coating formulations?
A: SETALUX 1921 BA-78 is a hydroxyl-functional acrylic resin designed to serve as a reactive binder in two-component polyurethane and polyester-based coating systems. It contributes to film formation, enhances crosslink density, and supports key performance attributes such as hardness, chemical resistance, and gloss retention.
Q2: Which curing agents is SETALUX 1921 BA-78 typically compatible with?
A: This resin is formulated for use with aliphatic and aromatic isocyanate crosslinkers, including HDI-based trimer and biuret types, as well as IPDI and TDI derivatives. Compatibility and reactivity should be verified experimentally within the final formulation due to sensitivity to catalysts, solvents, and ambient conditions.
Q3: How does SETALUX 1921 BA-78 support low-VOC or high-solids coating systems?
A: Its relatively low viscosity and high solid content enable efficient formulation of high-solids coatings without excessive solvent addition. It is suitable for VOC-compliant systems targeting architectural, industrial maintenance, and automotive refinish applications where reduced emissions are required.
Q4: What are the recommended storage conditions to maintain resin stability?
A: Store in tightly sealed original containers at temperatures between 5 °C and 30 °C, away from direct sunlight and sources of heat or moisture. Prolonged exposure to freezing conditions or elevated temperatures may affect viscosity and hydroxyl functionality over time.
Contact With Us:
E-mail: wangxingqiang@ericwchem.com
Have a Questions? Call Us:
Add:
Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
