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GMS Composites EP – 290

Producer:  GMS Composites
GMS Composites EP-290 is a nano-toughened epoxy resin matrix prepreg with long shelf life. The product has a versatile curing cycle from 100°C or as high as 150°C, thus enabling the product to be used to produce a wide range of composite items, from large structures to numerous small components. EP-290 is available in a range of substrates such as carbon, glass or aramid. This nano-toughened system has outstanding fracture properties and resistance to microcracking. The prepreg has good flow and is of medium tack.
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Identification & Functionality


Features & Benefits

Product Highlights
  • Variable cure cycle 100°C – 150°C
  • Good surface finish
  • Suitable for a range of structures and processes
  • Nano-Toughened
  • Excellent shelf life
  • Wide range of fibre substrates available
  • Made in Australia

Applications & Uses


EP-290 can be used to produce structural components with carbon, glass or aramid fibres. The versatility of EP-290 means that large complex structures, as well as, small basic components can be produced. It is possible to utilise EP-290 in a number of industries and applications such as marine, sports and leisure, industrial components, automotive and wind turbine blades.


Cured Properties
ValueUnitsTest Method / Conditions
Flexural Strength120 - 130MPaCured neat Formulation Cycle for 30 mins at 150°C
Elongation at flexural strength6.0 – 7.0%Cured neat Formulation Cycle for 30 mins at 150°C
Flexural Modulus2600 - 2800MPaCured neat Formulation Cycle for 30 mins at 150°C
Tg (DSC, 10 K/min)115 - 120°CCured neat Formulation Cycle for 30 mins at 150°C
Fracture Toughness K1C1.80 – 2.0MPa√mCured neat Formulation Cycle for 30 mins at 150°C
Fracture Energy G1C1100 - 1200J/m2Cured neat Formulation Cycle for 30 mins at 150°C
Water Absorption (10 days H20, 23°C)0.46 – 0.52%Cured neat Formulation Cycle for 30 mins at 150°C

Technical Details & Test Data


The versatility of GMS Composites EP-290 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 cure cycles.

Temperature (°C) Time
100 4 hrs
120 2 hrs
130 1 hrs
150 30 mins
  • Heat ramp up rate – 2°C / min
  • Pressure – 1 bar
Gel Time

Hot plate

Temperature (°C) Time
100 40-42
110 21-23
120 10-11
130 6-7
140 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 eyes. 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

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Technical Data Sheet
GMS Composites EP – 290
EP – 290 Technical Data Sheet
Technical Data Sheet
Products: GMS Composites EP – 290
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