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

Allnex SETAPOLL SP305 Polyester Resin

Allnex SETAPOLL SP305 is a high-performance alkyd-modified polyester resin from the SETAPOLL series, engineered for durable, gloss-retentive coil and can coatings. It offers excellent flow, curing efficiency, and resistance to weathering and chemicals, supporting low-VOC formulations without compromising film integrity or adhesion.
  • allnex setapoll sp305 polyester resin_c7544638
  • allnex setapoll sp305 polyester resin_c7544638

Features Of Allnex SETAPOLL SP305 Polyester Resin

  1. High-solids, low-viscosity unsaturated polyester resin for efficient processing and reduced VOC emissions.

  2. Excellent compatibility with standard styrene monomers and common accelerators used in gel coats and laminating systems.

  3. Superior surface hardness and gloss retention after curing, supporting high-end aesthetic requirements.

  4. Good thixotropic response when formulated with fumed silica or modified clays, enabling sag-resistant vertical application.

  5. Consistent batch-to-batch performance ensured by Allnex’s stringent quality control and ISO-certified manufacturing.

Typical Applications Of Allnex SETAPOLL SP305 Polyester Resin

  1. Gel coats for marine fiberglass hulls and decks requiring UV resistance and water impermeability.

  2. Laminating resins for wind turbine blade skins and structural composites in renewable energy.

  3. Reinforced thermoset parts in transportation (e.g., truck body panels, bus interiors).

  4. Architectural precast and decorative concrete facades where dimensional stability and weatherability are critical.

  5. Industrial tanks and corrosion-resistant linings for chemical containment systems.

Specifications Of Allnex SETAPOLL SP305 Polyester Resin

Chemical TypeUnsaturated polyester resin
Product FormLiquid, ready-to-use
AppearanceClear to pale yellow viscous liquid
Primary ApplicationsGel coats, laminating, casting, and pultrusion
Key FeaturesHigh solids (>65%), low styrene demand, excellent flow and leveling
BenefitsReduced emission profile, improved productivity, enhanced surface finish
Storage Stability12 months in original unopened container at 15–25°C
Recommended CatalystMethyl ethyl ketone peroxide (MEKP) at 0.8–1.5% w/w


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