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Medium-oil-length alkyd resin based on phthalic anhydride and soybean oil fatty acids.
Designed for excellent gloss retention and long-term durability in air-drying coatings.
Offers balanced drying speed and film hardness development under ambient conditions.
Provides good compatibility with common hydrocarbon solvents and other film-formers.
Delivers superior flexibility and impact resistance in finished coating films.
General-purpose decorative architectural paints (interior and exterior).
Industrial maintenance coatings for metal structures and equipment.
Wood finishing systems including varnishes and clear enamels.
Undercoat and primer formulations requiring adhesion and sandability.
Marine and agricultural equipment coatings exposed to moderate weathering.
| Chemical Type | Phthalic–soybean oil alkyd resin |
| Product Form | Liquid |
| Appearance | Clear to slightly hazy amber liquid |
| Primary Applications | Air-drying decorative and protective coatings |
| Key Features | Medium oil length, ambient cure, solvent-borne |
| Recommended Solvents | Aromatic hydrocarbons (e.g., xylene, high-flash naphtha) |
| Storage Stability | Stable at 20–25°C; avoid freezing and prolonged exposure to moisture |
| Benefits | Good balance of drying time, hardness, flexibility, and gloss |
Q1: What is the primary application area for SETAL 21-1395?
A: SETAL 21-1395 is a medium-oil-length alkyd resin designed primarily for solventborne industrial maintenance and protective coatings, including general-purpose enamels, primers, and topcoats where balanced drying performance, gloss retention, and substrate adhesion are required.
Q2: Is SETAL 21-1395 compatible with common crosslinkers used in alkyd systems?
A: Yes — it is fully compatible with conventional driers (e.g., cobalt, zirconium, calcium) and can be formulated with melamine-formaldehyde resins or polyisocyanates in hybrid systems to enhance cure speed and film properties, depending on the end-use requirements.
Q3: How does SETAL 21-1395 perform in terms of drying behavior and film hardness development?
A: It offers good through-dry and surface-dry balance typical of medium-oil alkyds, supporting efficient production workflows. Film hardness develops progressively under ambient conditions and can be accelerated with appropriate drier packages or elevated temperatures.
Q4: Can SETAL 21-1395 be used in high-solids formulations?
A: Yes — its viscosity and solubility profile support high-solids alkyd formulations when blended with reactive diluents or low-VOC solvents, helping formulators meet evolving regulatory and sustainability targets without compromising application or film integrity.
Q5: What types of substrates is SETAL 21-1395 especially suited for?
A: It delivers reliable adhesion and corrosion protection on ferrous metals and is commonly used on steel structures, agricultural and construction equipment, and metal furniture — particularly where flexibility and weather resistance are valued alongside cost-effective processing.
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