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Medium-oil-length alkyd resin offering balanced drying speed and film flexibility.
Excellent compatibility with nitrocellulose, vinyl resins, and common solvent-based systems.
Provides good gloss retention and surface hardness in air-drying coatings.
Formulated for low VOC compliance in conventional solvent-borne industrial finishes.
Consistent batch-to-batch performance with reliable rheology control in high-solids formulations.
Automotive refinish primers and basecoats.
Industrial maintenance coatings for metal structures and equipment.
General-purpose decorative wood and metal enamels.
Coil coating primer surfacers requiring sandability and adhesion.
Screen printing inks for rigid packaging substrates.
| Chemical Type | Alkyd resin (medium-oil, phthalic anhydride-based) |
| Product Form | Liquid |
| Appearance | Clear to pale yellow viscous liquid |
| Solvent | Xylene / mineral spirits blend |
| Non-Volatile Content (wt%) | ~75 ± 1% |
| Viscosity (25°C, mPa·s) | 800–1,200 (Brookfield RV, spindle #4, 20 rpm) |
| Acid Value (mg KOH/g) | 8–12 |
| Density (25°C, g/cm³) | 0.98–1.02 |
Q1: What is the primary function of SETAL 75 in coating formulations?
A: SETAL 75 is a reactive alkyd resin designed to act as a rheology modifier and film-forming aid, enhancing viscosity control, sag resistance, and leveling while supporting good gloss development and substrate wetting in solvent-borne industrial coatings.
Q2: Is SETAL 75 compatible with common solvent-borne resins such as acrylics or epoxies?
A: Yes, SETAL 75 demonstrates broad compatibility with conventional solvent-borne binders including acrylic, epoxy, and polyester resins, making it suitable for hybrid systems where improved flow and mechanical build are required.
Q3: How should SETAL 75 be incorporated into a formulation?
A: It is typically added during the let-down stage under moderate agitation and fully soluble in common organic solvents such as xylene, mineral spirits, and aromatic blends—no pre-dilution is generally required for standard processing conditions.
Q4: Does SETAL 75 contribute to drying performance in air-dry coatings?
A: As an alkyd-based resin, SETAL 75 supports oxidative crosslinking and contributes to through-dry development in air-dry systems, though its primary role remains rheological rather than as the main film former.
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E-mail: wangxingqiang@ericwchem.com
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