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

Allnex UVECOAT T 37621 Polyester Resin

Allnex UVECOAT™ T 37621 is a low-viscosity, high-reactivity aliphatic polyester resin designed for UV-curable coatings. Part of Allnex’s UVECOAT™ series, this multifunctional acrylate offers excellent gloss, hardness, and chemical resistance. Ideal for industrial wood, plastic, and metal finishing, it enables fast curing under UV light with minimal shrinkage and superior adhesion.
  • allnex uvecoat t 37621 polyester resin_b7c4e8e2
  • allnex uvecoat t 37621 polyester resin_b7c4e8e2

Features Of Allnex UVECOAT T 37621 Polyester Resin

  1. High reactivity in UV-curable systems for rapid through-cure and excellent surface hardness.

  2. Low viscosity enables formulation flexibility and improved pigment wetting without excessive diluent addition.

  3. Outstanding adhesion to diverse substrates including plastics, metals, and wood composites.

  4. Excellent weathering resistance with minimal yellowing under UV exposure and outdoor aging conditions.

  5. Good chemical resistance to alcohols, weak acids, and household cleaners after full cure.

Typical Applications Of Allnex UVECOAT T 37621 Polyester Resin

  1. UV-curable coatings for plastic automotive interior trim (e.g., dashboards, control panels).

  2. High-gloss decorative finishes on MDF and particleboard for furniture and cabinetry.

  3. Protective topcoats for rigid PVC profiles and extruded polymer building components.

  4. Functional coatings on polycarbonate and ABS electronics housings requiring abrasion resistance.

  5. Overprint varnishes for UV-flexo and offset printing on rigid packaging substrates.

Specifications Of Allnex UVECOAT T 37621 Polyester Resin

Chemical TypeAliphatic polyester acrylate oligomer
Product FormLiquid resin
AppearancePale yellow, clear liquid
Viscosity (25°C, mPa·s)8,000–12,000
Refractive Index (25°C)1.475–1.485
Acid Value (mg KOH/g)< 5
Primary ApplicationsUV-curable clearcoats, topcoats, and functional protective layers
Key FeaturesFast cure speed, high crosslink density, low shrinkage


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