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Medium-oil-length alkyd resin based on phthalic anhydride and soybean oil fatty acids.
Designed for excellent through-dry and good hardness development in air-drying coatings.
Offers balanced gloss retention and flexibility for durable decorative and protective finishes.
Compatible with common solvents, nitrocellulose, vinyl resins, and melamine-formaldehyde crosslinkers.
Provides good pigment wetting and substrate adhesion on wood, metal, and primed surfaces.
Interior and exterior architectural coatings for wood and metal substrates.
General-purpose maintenance and industrial maintenance paints.
Decorative varnishes and clear finishes for furniture and cabinetry.
Undercoats and primers requiring balanced drying and sanding performance.
Repair and touch-up coatings for OEM and aftermarket applications.
| Chemical Type | Medium-oil modified alkyd resin |
| Product Form | Liquid |
| Appearance | Clear to slightly hazy amber liquid |
| Primary Applications | Air-drying decorative and protective coatings |
| Key Features | Good through-dry, balanced hardness/gloss, solvent soluble |
| Recommended Solvents | Aromatic hydrocarbons (e.g., xylene), esters, ketones |
| Storage Stability | Stable under dry, cool conditions; avoid freezing and prolonged UV exposure |
| Benefits | Reliable film formation, compatibility with common co-resins and additives |
Q1: What is the primary application area for SETAL 21-2662?
A: SETAL 21-2662 is a medium-oil-length alkyd resin designed primarily for solventborne industrial maintenance and protective coatings, where balanced drying performance, gloss retention, and substrate adhesion are required.
Q2: Is SETAL 21-2662 compatible with common crosslinkers used in industrial coatings?
A: Yes — it is formulated to be compatible with standard amino resins (e.g., melamine-formaldehyde) and can also be used in air-drying or cobalt-catalyzed oxidative cure systems. Compatibility should always be verified in the final formulation under intended processing conditions.
Q3: How does SETAL 21-2662 perform in terms of yellowing resistance?
A: As a non-yellowing alkyd resin based on saturated fatty acids and phthalic anhydride, it offers improved resistance to yellowing upon aging and UV exposure compared to traditional long-oil unsaturated alkyds — though it is not classified as fully UV-stable like acrylics or polyurethanes.
Q4: Can SETAL 21-2662 be blended with other resin types?
A: It demonstrates good miscibility with many common coating resins including styrenated alkyds, vinyl copolymers, and certain acrylic solutions. Blending may modify viscosity, drying behavior, and film properties — therefore laboratory evaluation is recommended before full-scale implementation.
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