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High solids content for reduced VOC emissions and improved environmental compliance.
Excellent compatibility with standard amino resins and melamine-formaldehyde crosslinkers.
Superior gloss retention and color stability after thermal curing.
Good flow and leveling characteristics for smooth, defect-free film formation.
Optimized acid value for balanced reactivity and extended pot life in coating formulations.
Automotive OEM and refinish topcoats (basecoat/clearcoat systems).
Industrial maintenance coatings for metal furniture and appliances.
Powder coating binders for architectural aluminum extrusions.
High-performance coil coatings requiring excellent weather resistance.
General-purpose thermosetting decorative finishes on steel and aluminum substrates.
| Chemical Type | Thermosetting saturated polyester resin |
| Product Form | Pale yellow to light amber viscous liquid |
| Appearance | Clear, homogeneous, free from gels or sediment |
| Acid Value (mg KOH/g) | 28–34 |
| Hydroxyl Value (mg KOH/g) | 105–115 |
| Solids Content (% by weight) | 70 ± 1 |
| Viscosity (mPa·s, 25°C, Brookfield RV) | 4,500–6,500 |
| Primary Applications | Thermoset coatings requiring high durability and chemical resistance |
Q1: What is the primary application field for ETERKYD 5064-R-70-3?
A: ETERKYD 5064-R-70-3 is specifically formulated as a reactive diluent and modifier for unsaturated polyester resins, commonly used in high-performance gel coats, laminating resins, and casting systems where improved flow, reduced shrinkage, and enhanced surface hardness are required.
Q2: How does ETERKYD 5064-R-70-3 differ from standard styrene-based reactive diluents?
A: Unlike conventional styrene diluents, ETERKYD 5064-R-70-3 is a low-volatility, aromatic-modified polyester resin that contributes to lower VOC emissions, improved compatibility with high-solids formulations, and better retention of mechanical properties after cure—particularly in thick-section or low-ventilation applications.
Q3: Can ETERKYD 5064-R-70-3 be used in food-contact or potable water applications?
A: ETERKYD 5064-R-70-3 is not pre-approved for direct food-contact or potable water applications. Its suitability for such uses depends on full system formulation, final cured performance, and compliance verification against applicable regional regulatory frameworks by the end-user or compounder.
Q4: What are the recommended storage conditions?
A: Store in tightly sealed original containers under cool, dry, and well-ventilated conditions, away from direct sunlight and sources of heat or ignition. Prolonged exposure to elevated temperatures or moisture may affect viscosity stability and reactivity profile.
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E-mail: wangxingqiang@ericwchem.com
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