Physical Properties of Uncured Adhesive
Chemical composition | Epoxy Resin |
Appearance | White |
Viscosity @ 25°C | 15,000 – 30,000 mPa.s (cP) |
Specific gravity | 1.2 |
Typical Curing Properties
Flow at high temperature | Free flow |
Maximum gap fill | 0.25 mm 0.01 in |
Cure speed (oven) * | 130° C (266°F): 60 minutes 150°C (300°F): 45 minutes 160°C (320°F): 20 minutes |
Cure speed (induction) | <3 minutes |
Typical Performance of Cured Adhesive
Shear strength* (ISO4587) | Steel 20 – 35 MPa (3000 – 5000 psi) Aluminium 14 – 27 MPa (2000 – 4000 psi) Zinc 14 – 27 MPa (2000 – 4000 psi) |
Tensile strength (DIN53504) | 40 N/mm² (5800 psi) |
Hardness (ISO868) | 80-85 Shore D |
E-modulus | 2.1 GPa |
Elongation at break (DIN53504) | <3% |
Coefficient of thermal expansion | 50 x 10-6 mm/mm/°C (below Tg) 165 x 10-6 mm/mm/°C (above Tg) |
Thermal conductivity | 0.25 W/(m.K) |
Glass transition temperature (Tg – DSC) | 115°C (240°F) |
Water absorption (ISO62) | <0.5% (at room temperature) |