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Excellent thermal stability and long-term heat resistance up to 180 °C continuous service temperature.
High crosslink density enabling superior hardness, chemical resistance, and solvent resistance in cured films.
Low volatile organic compound (VOC) content, supporting compliance with stringent environmental and regulatory standards.
Consistent batch-to-batch reproducibility and excellent storage stability at ambient conditions.
Optimized reactivity profile for efficient curing with common amino crosslinkers (e.g., melamine-formaldehyde resins).
Automotive OEM topcoats and clearcoats requiring high gloss retention and weatherability.
Industrial coil coatings for pre-painted metal used in building panels and appliances.
High-performance can coatings for food and beverage containers.
Electrical insulation coatings for motor windings and transformer components.
Powder coating base resins for architectural aluminum extrusions and durable outdoor fixtures.
| Chemical Type | Thermosetting acrylic copolymer |
| Product Form | Liquid solution (solvent-based) |
| Appearance | Clear, pale yellow liquid |
| Solids Content | 55–60 wt% (by weight, 120 °C, 1 hr) |
| Acid Value | 15–25 mg KOH/g |
| Hydroxyl Value | 80–100 mg KOH/g |
| Viscosity (25 °C) | 1,200–1,800 mPa·s (Brookfield RV, spindle #3, 20 rpm) |
| Primary Applications | OEM automotive coatings, industrial coil coatings, can coatings, powder coatings |
Q1: What are the primary curing mechanisms for HR7130?
A: HR7130 is a thermoset acrylic resin designed for heat-activated crosslinking, typically via reaction with melamine-formaldehyde or urea-formaldehyde co-resins under conventional baking conditions. It may also be formulated for peroxide-initiated free-radical curing in specific high-temperature applications.
Q2: Is HR7130 suitable for high-gloss, weather-resistant coatings?
A: Yes — HR7130 delivers excellent UV stability, gloss retention, and chalking resistance when properly formulated and cured, making it well-suited for exterior architectural and industrial maintenance coatings requiring long-term durability.
Q3: How does HR7130 compare to standard thermoplastic acrylic resins in terms of film performance?
A: Unlike thermoplastic acrylics, HR7130 forms an irreversible, solvent- and heat-resistant network upon cure, significantly improving hardness, chemical resistance, and thermal stability — ideal for demanding OEM and refinish applications where re-dissolution or softening must be avoided.
Q4: Can HR7130 be used in low-VOC or water-reducible systems?
A: Yes — HR7130 is compatible with high-solids solventborne formulations and can be adapted into water-reducible systems using appropriate coalescents and dispersants, supporting formulation strategies aligned with evolving environmental regulations.
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E-mail: wangxingqiang@ericwchem.com
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