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High chemical resistance to solvents, acids, and alkalis for durable coating performance.
Excellent gloss retention and color stability under UV exposure and outdoor weathering.
Optimized viscosity and reactivity for smooth spray application and efficient curing with TGIC or HAA crosslinkers.
Low volatile organic compound (VOC) content, supporting compliant powder coating formulations.
Consistent batch-to-batch reproducibility and narrow molecular weight distribution for reliable film formation.
Architectural aluminum extrusions for curtain walls and window frames.
Automotive exterior trim and under-hood components requiring thermal and corrosion resistance.
Outdoor furniture and garden equipment coatings exposed to humid and saline environments.
Industrial appliances including washing machines, ovens, and HVAC housings.
General-purpose functional powder coatings for metal substrates in construction and infrastructure.
| Chemical Type | Saturated polyester resin for thermosetting powder coatings |
| Product Form | Pale yellow to light amber solid granules or flakes |
| Appearance | Free-flowing, homogeneous particles without visible impurities |
| Acid Value (mg KOH/g) | 28–34 |
| Gardner Color (10% w/w in MEK) | ≤ 3 |
| Melt Viscosity (200°C, Pa·s) | 30–50 |
| Gel Time (200°C, seconds) | 80–120 |
| Softening Point (°C, ASTM E28) | 78–84 |
Q1: What is the primary application field for ETERKYD 5355-R-65?
A: ETERKYD 5355-R-65 is specifically formulated for high-performance coil coating systems, where excellent gloss retention, flexibility, and resistance to weathering and chemical exposure are required.
Q2: Is ETERKYD 5355-R-65 compatible with common crosslinkers used in coil coatings?
A: Yes, it is designed to react efficiently with standard amino resins—particularly melamine-formaldehyde types—enabling robust cure profiles and durable film formation under typical coil coating line conditions.
Q3: How does ETERKYD 5355-R-65 contribute to film flexibility and formability?
A: Its saturated polyester backbone provides balanced molecular rigidity and chain mobility, supporting excellent bendability and resistance to cracking during post-forming operations such as roll forming or deep drawing.
Q4: Can ETERKYD 5355-R-65 be used in both solvent-borne and high-solids coil coating formulations?
A: It is optimized for medium-to-high solids solvent-borne systems, offering good viscosity control and compatibility with conventional organic solvents commonly employed in industrial coil coating lines.
Q5: What handling or storage precautions should be observed?
A: Store in tightly sealed containers in a cool, dry, well-ventilated area away from direct sunlight and strong oxidizing agents. Avoid prolonged exposure to moisture or elevated temperatures prior to use.
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E-mail: wangxingqiang@ericwchem.com
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Building A1, Jiete Industrial Park, Huangpu District, Guangzhou City, Guangdong Province, China
