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

Chang Chun ETERSET 2341 Unsaturated Polyester Resin

ChangChun ETERSET 2341 is a high-performance unsaturated polyester resin from ChangChun’s ETERSET series, engineered for superior mechanical strength, chemical resistance, and fast gel time. Widely used in FRP tanks, marine laminates, and industrial composites, it offers excellent flow, low exotherm, and compatibility with standard MEKP catalysts and fillers.
  • chang chun eterset 2341 unsaturated polyester resin_e7b3a4e1
  • chang chun eterset 2341 unsaturated polyester resin_e7b3a4e1

Features Of Chang Chun ETERSET 2341 Unsaturated Polyester Resin

  1. Excellent mechanical strength and dimensional stability after curing.

  2. Good compatibility with standard MEKP initiators and low-profile additives.

  3. Low viscosity for enhanced fiber wet-out and improved mold filling in composite processing.

  4. Consistent batch-to-batch performance ensured by Chang Chun’s stringent quality control.

  5. Optimized reactivity profile for balanced gel time and post-cure development in ambient and elevated temperature applications.

Typical Applications Of Chang Chun ETERSET 2341 Unsaturated Polyester Resin

  1. Fiberglass-reinforced plastic (FRP) tanks and chemical storage vessels.

  2. Pultruded profiles including structural rods, gratings, and ladder rails.

  3. Sheet molding compound (SMC) for automotive under-hood components.

  4. Centrifugally cast pipes and ducts for water and wastewater infrastructure.

  5. Marine deck laminates and non-structural boat hull reinforcements.

Specifications Of Chang Chun ETERSET 2341 Unsaturated Polyester Resin

Chemical TypeOrthophthalic unsaturated polyester resin
Product FormLiquid, ready-to-use
AppearanceClear to pale yellow viscous liquid
Viscosity (25°C, mPa·s)350–550
Gel Time (with 1.0% MEKP, 25°C, min)12–20
Solid Content (% w/w)99.5–100.0
Density (25°C, g/cm³)1.12–1.16
Primary ApplicationsFRP, pultrusion, SMC, centrifugal casting


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