3M™ Scotch-Weld™ Epoxy Adhesive DP420 is a toughened, two-part epoxy structural adhesive that provides good strength along with high impact and fatigue resistance to meet demanding bonding challenges. 3M™ Scotch-Weld Epoxy Adhesive DP420 can replace mechanical fasteners, screws, rivets and spot welds in many applications.
FEATURES
- High peel and shear strength maintains lasting bond at high and low temperatures
- Toughened for impact and fatigue resistance
- 20 minute work life provides time for positioning and adjustment
- Adhesive cures at room temperature, making it a convenient and easy to use solution for challenging applications
- Reaches high strength quickly with heat cure
APPLICATIONS
- Small joint assembly
- Heavy-duty mounting assembly
- Metalworking
- Carbon fiber epoxy bonding
Property | Values | Unit |
Viscosity | 20,000-50,000 | cP |
Shore D Hardness | 75-80 | – |
Coefficient of Thermal Expansion | 80 x 10-6 | in./in./°C |
Dielectric Strength | 888 | volts/mil |
690 | volts/mil | |
Volume Resistivity | 1.6 x 1015 | ohm-cm |
1.3 x 1015 | ohm-cm | |
Shelf Life | 15 | months |