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

Chan Chem EL-5500 Polyester Resin

ChanChemEL-5500PolyesterResinisahigh-performanceunsaturatedpolyesterresinfromtheChanChemELSeries,engineeredforexcellentsurfacehardness,chemicalresistance,andfastcureinsheetmoldingcompound(SMC)andbulkmodelingcompound(BMC)applications.Idealforautomotiveandindustrialcompositeswithlowviscosityandconsistentbatchtolerance.
  • chan chem el 5500 polyester resin_590a7006
  • chan chem el 5500 polyester resin_590a7006

Features Of Chan Chem EL-5500 Polyester Resin

  1. High reactivity with standard MEKP initiators for rapid gelation and efficient production cycles.

  2. Excellent compatibility with common glass fiber reinforcements and mineral fillers.

  3. Low styrene emission profile, supporting improved workplace air quality and regulatory compliance.

  4. Consistent viscosity and shelf stability up to 6 months when stored at 25°C in sealed containers.

  5. Balanced toughness and surface hardness for structural and semi-structural composite parts.

Typical Applications Of Chan Chem EL-5500 Polyester Resin

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

  2. Marine deck components and non-structural hull laminates.

  3. Architectural cladding panels and decorative GRP façade elements.

  4. Industrial grating, walkways, and corrosion-resistant equipment housings.

  5. Wind turbine nacelle covers and auxiliary composite enclosures.

Specifications Of Chan Chem EL-5500 Polyester Resin

Chemical TypeUnsaturated orthophthalic polyester resin
Product FormLiquid, ready-to-use
AppearanceClear to pale yellow viscous liquid
Viscosity (25°C, mPa·s)350–450
Acid Value (mg KOH/g)18–22
Gel Time (with 1.0% MEKP, 25°C, min)12–18
Styrene Content (wt%)38–42
Key FeaturesFast cure, low exotherm, high fiber wet-out


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