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High hydroxyl functionality for excellent crosslinking density with melamine and polyisocyanate curing agents.
Low viscosity enabling high-solids formulation without sacrificing application performance.
Outstanding gloss retention and UV resistance for durable exterior coatings.
Excellent compatibility with common solvent-borne resins and additives.
Consistent batch-to-batch reproducibility meeting stringent automotive OEM requirements.
Automotive original equipment manufacturer (OEM) topcoats.
Automotive refinish clearcoats and basecoats.
Industrial maintenance coatings for metal substrates.
High-performance coil coatings requiring weatherability and hardness.
| Chemical Type | Hydroxyl-functional acrylic copolymer |
| Product Form | Liquid resin in organic solvent blend |
| Appearance | Clear, pale yellow liquid |
| Hydroxyl Value (mg KOH/g) | 65–75 |
| Acid Value (mg KOH/g) | < 5 |
| Solids Content (% w/w) | 60 ± 2 |
| Viscosity (DIN 4, 23°C, mPa·s) | 3,000–5,000 |
| Primary Applications | OEM automotive coatings, refinish clearcoats, industrial high-gloss finishes |
Q1: What is the primary function of SETALUX D A 170 BA in coating formulations?
A: SETALUX D A 170 BA serves as a hydroxyl-functional acrylic resin that acts as a reactive binder in two-component polyurethane and polyester-based coatings, providing excellent gloss retention, weather resistance, and compatibility with common crosslinkers such as aliphatic isocyanates.
Q2: Is this resin suitable for high-solids or low-VOC coating systems?
A: Yes — SETALUX D A 170 BA is designed to support medium-to-high solids formulations and can be incorporated into solventborne systems targeting reduced VOC content, depending on solvent selection and overall formulation strategy.
Q3: How does SETALUX D A 170 BA compare to other hydroxyl acrylic resins in terms of cure speed and film hardness development?
A: It offers balanced reactivity with standard aliphatic isocyanate crosslinkers, enabling good pot life while supporting efficient ambient- or forced-dry cure profiles. Final film hardness and through-cure performance are typically comparable to mid-range hydroxyl acrylics used in industrial maintenance and automotive refinish applications.
Q4: Can it be used in clearcoats for exterior applications?
A: Yes — its acrylic backbone provides inherent UV stability and resistance to yellowing, making it well-suited for durable clearcoat systems requiring long-term gloss and color retention under outdoor exposure.
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