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High hydroxyl functionality for excellent crosslink density with melamine and polyisocyanate curing agents.
Optimized molecular weight distribution for balanced flow, leveling, and film hardness development.
Low volatile organic content (VOC) compliant formulation suitable for high-solids industrial coatings.
Superior weather resistance and UV stability in outdoor durable coating systems.
Good compatibility with common acrylic, polyester, and cellulose ester resins in hybrid binder systems.
Automotive OEM topcoats and clearcoats.
Industrial maintenance coatings for machinery and metal structures.
General-purpose coil coatings for pre-painted metal substrates.
High-performance appliance finishes requiring gloss retention and chemical resistance.
Refinish coatings for automotive and heavy-duty equipment repair.
| Chemical Type | Hydroxyl-functional acrylic copolymer |
| Product Form | Liquid resin solution |
| Appearance | Clear to slightly hazy, pale yellow liquid |
| Solvent System | 70% BAC (butyl acetate), 30% xylene-free aromatic blend |
| Hydroxyl Value (OH#) | 70–76 mg KOH/g |
| Acid Value | < 5 mg KOH/g |
| Non-Volatile Content (NV%) | 55–59% (by weight, 1 hr @ 125°C) |
| Viscosity (DIN 4, 25°C) | 18–24 s |
Q1: What is the primary function of MACRYNAL VSM 2570 70BAC in coating formulations?
A: It serves as a hydroxyl-functional acrylic resin designed to act as a reactive binder in two-component polyurethane and polyester-based crosslinking systems, contributing to film hardness, flexibility, gloss retention, and chemical resistance.
Q2: Is this resin suitable for high-solids or low-VOC coating applications?
A: Yes — its formulation supports reduced solvent demand and is commonly incorporated into medium- to high-solids industrial coatings where VOC compliance and efficient film formation are required.
Q3: How does MACRYNAL VSM 2570 70BAC perform in outdoor exposure conditions?
A: As a hydroxyl acrylic resin with inherent UV stability and weatherability, it contributes to long-term gloss retention and minimal chalking when formulated with appropriate UV absorbers and HALS stabilizers.
Q4: Can this resin be used in automotive refinish or OEM topcoats?
A: It is widely utilized in premium refinish and select OEM-compatible topcoat systems where balanced cure speed, appearance, and mechanical performance are critical — though final suitability depends on full system validation including crosslinker selection and curing conditions.
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E-mail: wangxingqiang@ericwchem.com
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