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Medium-oil-length alkyd resin based on phthalic anhydride and soybean oil fatty acids.
Excellent gloss retention and film flexibility for durable decorative coatings.
Good compatibility with nitrocellulose, PVC plastisols, and common thermoplastic resins.
Low viscosity enables high-solids formulation without excessive solvent demand.
Designed for ambient-cure and forced-dry applications with balanced drying speed.
General-purpose decorative architectural paints (interior/exterior).
Industrial maintenance coatings for metal substrates.
Wood finishing systems including varnishes and stains.
Printing inks requiring good pigment wetting and substrate adhesion.
Undercoats and primers for ferrous and non-ferrous metals.
| Chemical Type | Phthalic–soybean oil alkyd resin |
| Product Form | Liquid, solvent-borne |
| Appearance | Clear to pale yellow viscous liquid |
| Primary Applications | Decorative paints, industrial maintenance coatings, wood finishes |
| Key Features | Medium oil length, good flexibility, gloss retention, solvent compatibility |
| Benefits | Enables low-VOC formulations, balanced drying, ease of pigment dispersion |
| Recommended Solvents | Aromatic hydrocarbons (e.g., xylene), esters (e.g., butyl acetate) |
| Storage Stability | Stable under cool, dry conditions; avoid prolonged exposure to moisture |
Q1: What is the primary application field for SETAL 21-2113?
A: SETAL 21-2113 is a medium-oil alkyd resin specifically designed for high-performance decorative and protective coatings, including interior/exterior architectural paints, wood finishes, and general industrial maintenance coatings where balanced drying, gloss retention, and substrate adhesion are required.
Q2: Is SETAL 21-2113 compatible with waterborne systems?
A: SETAL 21-2113 is an oil-based alkyd resin and is not inherently water-dispersible. It can be incorporated into hybrid or solvent-borne systems, and may be used in certain water-reducible formulations when properly emulsified or modified—but it is not recommended for direct use in standard waterborne acrylic or polyurethane dispersions without formulation support.
Q3: How does SETAL 21-2113 perform in terms of drying and through-dry?
A: As a cobalt-free, air-drying alkyd, SETAL 21-2113 offers good surface dry and progressive through-dry under ambient conditions. Its drying profile is optimized for formulations targeting reduced VOC content while maintaining practical recoat windows and film integrity—typically enhanced with appropriate driers when needed.
Q4: Can SETAL 21-2113 be used in low-VOC or exempt-solvent formulations?
A: Yes—SETAL 21-2113 is formulated to support low-VOC coating systems. It exhibits favorable solubility in common exempt solvents (e.g., acetone, ethanol, ethyl acetate) and selected high-boiling oxygenates, enabling formulators to meet regional VOC limits without compromising film formation or mechanical properties.
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