
EP-80 is a highly transparent epoxy resin system suitable for medium-temperature curing at 120°C. When molded with glass fiber, the resulting sheets are transparent. Its viscosity and tack make it suitable for prepreg processes, including prepregs reinforced with carbon fiber, glass fiber, aramid fiber, and fabrics (using both hot-melt and solvent methods).
EP-80 epoxy prepregs are processed using forming techniques such as autoclave curing, compression molding, and vacuum bagging. The resulting composite materials exhibit excellent toughness, impact resistance, and low permeability, making them suitable for industrial products such as 3C devices and sports equipment. They are designed for long-term use at temperatures ranging from -50°C to 20°C.
Properties of Resin Castings (Cured at 120°C)
|
Item |
Specification Range | Test Standards |
|
Glass Transition Temperature(Tg) |
101°C(DSC) |
GB/T19466.2 |
|
Resin Density |
1.19g/cm³ |
|
|
Tensile Strength |
75MPa |
ASTM-D638 |
|
Modulus of Elasticity |
3.2GPa |
ASTM-D638 |
|
Fracture toughness |
1.77KIC |
|
|
Bending Strength |
120MPa |
ASTM-D790 |
|
Modulus of Flexural Rigidity |
1.77GPa |
ASTM-D790 |


