Knowde Enhanced TDS
Identification & Functionality
GMS Composites EP – 270 Features & Benefits
- 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.
|Value||Units||Test Method / Conditions|
|Flexural Strength at 23°C||130 - 140||MPa||Cured neat Formulation Cycle for 2hrs at 120°C|
|Ultimate Elongation at 23°C||7.0 – 9.0||%||Cured neat Formulation Cycle for 2hrs at 120°C|
|Flexural Modulus at 23°C||3000 - 3200||MPa||Cured neat Formulation Cycle for 2hrs at 120°C|
|Fracture Toughness K1c||0.7 - 0.8||MPa√m||Cured neat Formulation Cycle for 2hrs at 120°C|
|Fracture Energy G1c||150 - 160||J/m2||Cured neat Formulation Cycle for 2hrs at 120°C|
|Tg (DSC, 10 K/min)||120 - 125||°C||Cured neat Formulation Cycle for 2hrs at 120°C|
|Interlaminar shear strength (12 layers UD e-glass (425gsm) 3.2mm thick laminate )||55 - 65||Mpa||Cured 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|
- Heat ramp up rate – 2°C / min
- Pressure – 1 bar
|Temperature (°C)||Time (min)|
|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.
- Room temperature (23°C) > 5 weeks
- Refrigerated (-18°C) 12 months