Epoxy Resin

We supply high quality epoxy resins applicable in making  composite parts as well as tooling/mould. These can be used along with carbon/glass/Kevlar fibers , PVC foam cores and honeycomb cores etc.

Epoxy Gel Coat

Tooling epoxy gel coat is used in repairing molds. Model: CAMG-4626 Tg: 105-115 ℃ Viscosity at 25℃ : Black thick paste Curing condition: 6-8 hours at 50℃（initial cure）+ 5 hours at 100 ℃ Options on Hardener  Fast: 30-60 minute...

Hand Lay-Up Epoxy

Hand lay-up is the most common and least expensive open-molding process of building composites.  It requires the least amount of equipment. Layers of fiber reinforcements such as carbon fiber cloth  are placed by hand on a mold and resin is applied...

Vacuum Infusion Epoxy

Vacuum infusion is a type of closed mould composite fabrication method.  Epoxy resin is introduced into the mould after the vacuum has pulled the bag down and compacted the laminate. The reinforcements and core material are laid-up dry in the mould. ...

What is Epoxy resin?

Epoxy resins are thermosetting prepolymers made either by the reaction of epichlorohydrin with hydroxyl functional aromatics, cycloaliphatics and aliphatics or amine functional aromatics, or by the oxidation of unsaturated cycloaliphatics. The diglycidyl ethers of bisphenol-A (DGEBA) and bisphenol-F (DGEBF) are the most widely used due to their characteristic high adhesion, mechanical strength, heat and corrosion resistance. Epoxide functional resins and prepolymers cure by polyaddition/copolymerisation or homopolymerisation depending on the selection of crosslinker, hardener, curing agent or catalyst as well as by the temperature.

Epoxy resin is used widely in numerous formulations and forms in the aircraft-aerospace industry. It is regarded as “the work-horse of modern-day composites”. In recent years, the epoxy formulations used in composite prepregs have been fine-tuned to improve their toughness, impact strength and moisture absorption resistance. Maximum properties have been realized for this polymer.

This is not only used in aircraft-aerospace demand. It is used in military and commercial applications and is also used in construction. Epoxy-reinforced concrete and glass-reinforced and carbon-reinforced epoxy structures are used in building and bridge structures.

Epoxy composites have the following key properties:

  • High-Strength Glass Fiber Reinforced
  • Relative Density 1.6-2.0
  • Melting temperature(°C)
  • Thermoset Processing Range(°F) C:300-330,I=280-380
  • Molding pressure 1-5
  • Shrinkage 0.001-0.008
  • Tensile strength (p.s.i.) 5,000-20,000
  • Compressive strength (p.s.i.) 18,000-40,000
  • Flexural Strength (p.s.i.) 8000-30,000
  • Izod impact strength (ft·lb/in) 0.3-10.0
  • Linear expansion (10−6 in./in./°C) 11-50
  • Hardness Rockwell M100-112
  • Flammability V-0
  • Water absorption 24h (%) 0.04-0.20

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