EP678
Trelleborg EP678 is a medium temperature, low density syntactic epoxy tooling board designed for the manufacture of accurate and stable master models and molds.
High quality finish
Consistent high-quality surface finish to achieve a premium product
Low coefficient of thermal expansion
Consistent, predictable performance
Direct from part manufacturing
Suitable for use up to 135 °C
Inert surface
Chemically compatible with tooling prepregs
Key Applications
EP678 offers many benefits and used for the following:
Master models
Lay-up tools for low and medium temperature curing epoxy prepreg
Product sizes
EP678 is available in a standard board size of 24” x 60” at the following thicknesses: 2", 3", 4" and 6".
Storage
The board should be stored in a dry warehouse.
Health & Safety
Eye protection and a face mask should be worn when working with Trelleborg EP678. Please refer to the Trelleborg MSDS.
Gallery
Tooling board
Tooling Board
EP678 Typical Properties
| EP678 | ||
|---|---|---|
|
Color |
Blue |
|
| Density | 708 kg/m³ | |
| Shore hardness | 68 D | |
| Uniaxial compressive strength | 52 MPa | BS EN ISO 604 |
| HDT | 135 °C |
BS 2782 |
| Glass transition temperature |
125 °C |
BS EN ISO 11359-2 |
| Coefficient of thermal expansion |
37 x 10⁶ / °C | BS EN ISO 11359-2 |
| Flexural strength | 34.3 MPa | BS EN ISO |
| Flexural modulus | 2,483 MPa | BS EN ISO 178 |
EP678
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