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Medium-oil-length alkyd resin based on phthalic anhydride and glycerol for balanced drying and flexibility.
Designed for excellent gloss retention and color stability in ambient-cure coatings.
Offers good compatibility with common solvents, nitrocellulose, and other alkyd resins.
Delivers robust film formation with enhanced hardness development over time.
Formulated for low VOC content, supporting compliance with regional environmental regulations.
General-purpose decorative wood finishes (interior and exterior).
Industrial maintenance coatings for metal substrates.
Can coatings requiring good overprintability and substrate adhesion.
Automotive refinish primers and basecoats where air-dry performance is critical.
Marine and agricultural equipment coatings requiring weather resistance.
| Chemical Type | Phthalic–glycerol alkyd resin |
| Product Form | Liquid |
| Appearance | Clear to pale yellow viscous liquid |
| Primary Applications | Air-dry decorative and industrial coatings |
| Key Features | Medium oil length, ambient cure, good gloss & flexibility |
| Benefits | Easy formulation, reliable film build, solvent compatibility |
| Recommended Solvents | Aromatic hydrocarbons, ketones, esters |
| Storage Stability | 12 months in original unopened container at 15–25°C |
Q1: What is the primary application area for SETAL 304?
A: SETAL 304 is a medium-oil alkyd resin designed primarily for solvent-borne decorative and protective coatings, including interior and exterior architectural paints, wood finishes, and general-purpose industrial maintenance coatings.
Q2: Is SETAL 304 compatible with common crosslinkers used in ambient-cure systems?
A: Yes, SETAL 304 is formulated to react efficiently with standard ambient-cure crosslinkers such as melamine-formaldehyde resins and isocyanate-free curing agents, enabling good through-cure and film hardness development at room temperature.
Q3: How does SETAL 304 perform in terms of yellowing resistance?
A: As a cobalt-free, semi-drying alkyd resin, SETAL 304 offers improved resistance to yellowing compared to traditional cobalt-catalyzed drying alkyds—particularly in interior applications and clear or light-colored finishes exposed to ambient light.
Q4: Can SETAL 304 be blended with other resin types?
A: Yes, SETAL 304 exhibits good compatibility with acrylics, vinyls, and certain polyurethane dispersions, making it suitable for hybrid formulations aimed at balancing cost, performance, and regulatory compliance.
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E-mail: wangxingqiang@ericwchem.com
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