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GMS Composites EP – 270

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Supplier:  GMS Composites
Polymer Name: Epoxy Resins & Compounds
Function: Prepreg
Reinforcement Material: Glass Fibers, Carbon Fibers, Aramid (Kevlar)
Processing Methods: Prepreg Processing
End Uses: Tanks, Pipes & Liners
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GMS Composites EP – 270
GMS Composites
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TypeDocument Name
Technical Data Sheet
EP – 270 Technical Data Sheet
EP – 270 Technical Data Sheet
Technical Data Sheet

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Identification & Functionality

GMS Composites EP – 270 Features & Benefits

Materials Features
Product Highlights
  • Variable cure cycle 70°C – 130°C
  • Good surface finish
  • Suitable for a range of structures and processes
  • Excellent shelf life
  • Wide range of fibre substrates available
  • Made in Australia

Applications & Uses


EP-270 can be used to produce structural components with carbon, glass or aramid fibres. It can also be used in the construction of sandwich structures as well as tooling applications. The versatility of EP-270 means that large, complex structures as well as small basic components can be produced. It is possible to utilise EP-270 in a number of industries and applications such as marine, sports and leisure, industrial components and automotive.


Cured Properties
ValueUnitsTest Method / Conditions
Flexural Strength at 23°C130 - 140MPaCured neat Formulation Cycle for 2hrs at 120°C
Ultimate Elongation at 23°C7.0 – 9.0%Cured neat Formulation Cycle for 2hrs at 120°C
Flexural Modulus at 23°C3000 - 3200MPaCured neat Formulation Cycle for 2hrs at 120°C
Fracture Toughness K1c0.7 - 0.8MPa√mCured neat Formulation Cycle for 2hrs at 120°C
Fracture Energy G1c150 - 160J/m2Cured neat Formulation Cycle for 2hrs at 120°C
Tg (DSC, 10 K/min)120 - 125°CCured neat Formulation Cycle for 2hrs at 120°C
Interlaminar shear strength (12 layers UD e-glass (425gsm) 3.2mm thick laminate )55 - 65MpaCured neat Formulation Cycle for 2hrs at 120°C

Technical Details & Test Data


The versatility of GMS Composites EP-270 means a range of cure cycles, pressures and ramp up rates can be adopted all of which will depend greatly on the part being produced. Below is a guide to minimum cure cycles.

Temperature (°C) Time Tg (°C) - DSC7
70 16 hrs 85
80 8 hrs 97
90 4 hrs 105
100 2 hrs 115
110 1 hrs 118
120 30 mins 123
130 15 mins 125
  • Heat ramp up rate – 2°C / min
  • Pressure – 1 bar
Gel Time

Hot plate

Temperature (°C) Time (min)
110 12-14
120 6-7
130 3 - 4

Values are indicative of small samples of neat resin formulation. Gel times may vary significantly in composites depending on fibre content and laminate thickness.

Storage & Handling


Customers should ensure appropriate workplace OH&S guidelines are followed when working with this product. Appropriate measures should be taken to avoid contact with skin and  yes. Avoid inhalation of dust or fumes that may be released or created when machining, cutting or curing.

Shelf Life
  • Room temperature (23°C) > 5 weeks
  • Refrigerated (-18°C) 12 months