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Fast-drying alkyd resin designed for high-gloss, durable coatings.
Excellent compatibility with common solvents and co-resins including acrylics and melamines.
Provides superior gloss retention and weather resistance in exterior applications.
Low volatile organic compound (VOC) content, supporting compliant architectural and industrial formulations.
Good flow and leveling characteristics for smooth film formation without orange peel.
High-performance exterior wood stains and clear finishes.
Premium architectural trim and door coatings.
Industrial maintenance coatings for metal and concrete substrates.
Decorative metal furniture and garden equipment finishes.
Refinish coatings for automotive aftermarket and agricultural machinery.
| Chemical Type | Long-oil modified alkyd resin |
| Product Form | Liquid, solvent-borne |
| Appearance | Clear to pale yellow viscous liquid |
| Primary Applications | Exterior wood and metal coatings |
| Key Features | Fast drying, high gloss, excellent UV stability |
| Benefits | Reduced recoat time, enhanced durability, VOC-compliant formulation |
| Solvent System | Aromatic hydrocarbons and/or ester blends |
| Storage Stability | Stable for ≥12 months at 15–25°C in sealed containers |
Q1: What is the primary function of Uralac AV403 in alkyd-based coatings?
A: Uralac AV403 is a water-reducible alkyd resin designed to serve as a film-forming binder in low-VOC, high-performance decorative and protective coatings. It enables formulators to achieve good gloss, hardness development, and substrate adhesion while supporting aqueous processing.
Q2: Is Uralac AV403 compatible with common co-binders and crosslinkers used in industrial alkyd systems?
A: Yes — Uralac AV403 demonstrates broad compatibility with acrylic emulsions, polyurethane dispersions, melamine formaldehyde resins, and metal driers (e.g., cobalt-, zirconium-, or calcium-based). Compatibility should always be verified experimentally within the target formulation due to pH, ionic strength, and shear sensitivity.
Q3: How should Uralac AV403 be stored and handled to maintain stability?
A: Store in original sealed containers at temperatures between 5 °C and 30 °C, away from direct sunlight and freezing conditions. Avoid prolonged exposure to high humidity during handling. The resin is supplied as a stable aqueous dispersion and does not require special inerting, but agitation before use is recommended if settled.
Q4: Can Uralac AV403 be used in food-contact coatings?
A: Uralac AV403 is not pre-qualified for direct food-contact applications. Its suitability for such uses depends on full regulatory assessment by the formulator, including migration testing and compliance with applicable regional frameworks (e.g., EU Framework Regulation (EC) No 1935/2004 or FDA 21 CFR).
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E-mail: wangxingqiang@ericwchem.com
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