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

Allnex SETAPOLL SP391 Polyester Resin

Allnex SETAPOLL SP391 is a high-performance aliphatic polyester resin from the SETAPOLL series, engineered for UV-curable coatings and inks. It delivers excellent gloss retention, flexibility, and weather resistance with low viscosity and fast cure response—ideal for industrial wood, plastic, and metal finishing applications requiring durability and clarity.
  • allnex setapoll sp391 polyester resin_9e16e9da
  • allnex setapoll sp391 polyester resin_9e16e9da

Features Of Allnex SETAPOLL SP391 Polyester Resin

  1. High-solids, low-viscosity unsaturated polyester resin designed for efficient processing in spray and flow-coating systems.

  2. Excellent compatibility with standard styrene monomers and common free-radical initiators.

  3. Provides balanced cure speed and extended pot life under ambient and elevated temperature conditions.

  4. Delivers superior surface hardness, gloss retention, and chemical resistance in cured films.

  5. Formulated to meet stringent VOC regulations with reduced styrene emission potential during application.

Typical Applications Of Allnex SETAPOLL SP391 Polyester Resin

  1. Fiberglass-reinforced plastic (FRP) components for transportation and infrastructure.

  2. Marine gelcoats and topcoats requiring weatherability and hydrolytic stability.

  3. Industrial maintenance coatings for steel and concrete substrates.

  4. Architectural precast concrete form liners and decorative panels.

  5. Composite wind turbine blade matrices and structural pultrusion profiles.

Specifications Of Allnex SETAPOLL SP391 Polyester Resin

Chemical TypeUnsaturated Polyester Resin
Product FormLiquid
AppearanceClear to pale yellow, homogeneous liquid
Primary ApplicationsGelcoats, laminating resins, industrial coatings
Key FeaturesHigh solids, low viscosity, styrene-compatible, fast-curing
BenefitsImproved application efficiency, reduced emissions, enhanced durability
Storage Stability≥6 months at 25°C in sealed container
Recommended Styrene Content30–35 wt% (adjustable per formulation)


Get in Touch with ERICW
Let competitive chemical materials go global.

Your Name *

Your Email *

Your Phone

Country

Your Message *