Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

ECOAT UR3308 Waterborne Polyurethane Modified Alkyd Resin

ECOAT UR3308 is a waterborne polyurethane-modified alkyd resin from the ECOAT Waterborne Resin Series, offering excellent gloss retention, hardness development, and eco-friendly low-VOC performance for industrial wood and metal coatings.
  • ecoat ur3308 waterborne polyurethane modified alkyd resin_ecd1929c
  • ecoat ur3308 waterborne polyurethane modified alkyd resin_ecd1929c

Features Of ECOAT UR3308 Waterborne Polyurethane Modified Alkyd Resin

  1. Waterborne formulation delivering low VOC content (< 50 g/L), compliant with stringent global environmental regulations.

  2. Enhanced film toughness and abrasion resistance due to polyurethane modification, outperforming conventional alkyds.

  3. Excellent hydrolytic stability and storage shelf life (>12 months at 5–30°C) without coalescent solvents or added biocides.

  4. Good recoatability and intercoat adhesion on both porous and non-porous substrates, including wood, metal, and primed plastics.

  5. Fast ambient drying (tack-free in ≤45 min at 25°C/60% RH) with full hardness development within 7 days.

Typical Applications Of ECOAT UR3308 Waterborne Polyurethane Modified Alkyd Resin

  1. Interior architectural coatings for high-traffic commercial spaces such as offices, schools, and healthcare facilities.

  2. Wood finishing systems for furniture, cabinetry, and millwork requiring durable, low-odor topcoats.

  3. Protective coatings for light-duty industrial metal components, including HVAC enclosures and retail fixtures.

  4. Base resin for premium waterborne varnishes and clear maintenance coatings used in heritage restoration projects.

  5. Formulation backbone for eco-label-compliant decorative paints targeting Green Building Standards (e.g., LEED, BREEAM).

Specifications Of ECOAT UR3308 Waterborne Polyurethane Modified Alkyd Resin

Chemical TypeWaterborne polyurethane-modified alkyd resin
Product FormLiquid dispersion in water
AppearanceOpaque off-white to pale yellow liquid, homogeneous
pH (10% aqueous solution)8.0 – 8.8
Solids Content (wt%)42.0 ± 1.5
Viscosity (Brookfield RVT, #3 spindle, 20 rpm, 25°C)2,500 – 4,500 cP
Minimum Film Formation Temperature (MFFT)≤ 15°C
Primary ApplicationsWaterborne architectural and industrial topcoats; clear and pigmented finishes


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