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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 weathering conditions.
Low viscosity and good flow characteristics enabling smooth film formation and easy processing.
Compatible with common amino crosslinkers (e.g., melamine-formaldehyde) for thermoset applications.
Low volatile organic compound (VOC) content supporting compliance with modern environmental regulations.
Automotive OEM and refinish topcoats requiring high durability and aesthetic quality.
Appliance coatings for refrigerators, washing machines, and ovens.
General metal finishing for outdoor furniture, lighting fixtures, and architectural components.
Coil coating systems where consistent film build and corrosion resistance are critical.
Industrial maintenance coatings for machinery and structural steel substrates.
| Chemical Type | Saturated polyester resin |
| Product Form | Liquid |
| Appearance | Clear to pale yellow viscous liquid |
| Non-Volatile Content (wt%) | 58–62% (at 125°C, 60 min) |
| Viscosity (mPa·s, 25°C) | 3,500–4,500 |
| Acid Value (mg KOH/g) | 12–16 |
| Hydroxyl Value (mg KOH/g) | 95–105 |
| Primary Applications | Thermosetting coil, appliance, and automotive coatings |
Q1: What are the primary application areas for ETERKYD 5017-R-40?
A: ETERKYD 5017-R-40 is specifically designed for high-performance coil coating and general industrial coatings where excellent gloss retention, flexibility, and resistance to weathering and chemical exposure are required. It is commonly used in pre-painted metal applications for building panels, appliances, and transportation components.
Q2: How does ETERKYD 5017-R-40 differ from unsaturated polyester resins?
A: Unlike unsaturated polyesters, ETERKYD 5017-R-40 is a saturated polyester resin—meaning it contains no carbon–carbon double bonds in the backbone. This provides superior hydrolytic stability, reduced susceptibility to UV-induced degradation, and improved compatibility with a broad range of crosslinkers, especially amino resins like melamine-formaldehyde.
Q3: What types of crosslinkers are compatible with this resin?
A: ETERKYD 5017-R-40 is formulated to react efficiently with melamine-formaldehyde resins under conventional baking conditions. It also demonstrates good compatibility with urea-formaldehyde and certain blocked isocyanate systems, depending on catalyst selection and cure profile.
Q4: Is ETERKYD 5017-R-40 suitable for low-VOC formulations?
A: Yes—its relatively low acid value and high molecular weight contribute to favorable solution viscosity and reduced solvent demand. When formulated with appropriate solvents and crosslinkers, it supports compliant industrial coating systems targeting lower VOC emissions without compromising film integrity or cure response.
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E-mail: wangxingqiang@ericwchem.com
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