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.
3M™ Scotch-Weld™ Epoxy Adhesive DP420 maintains bond strength at high and low temperatures and can withstand paint bake operations up to 400°F (204.4°C) for 60 minutes. It works well on a variety of substrates such as metals, ceramics, wood, glass, many composites, and plastics and is an excellent indoor bonding agent for joining, gluing, potting, panel bonding, and structural bonding. 3M™ Scotch-Weld™ Epoxy Adhesive DP420 reaches handling strength in approximately two hours and is fully cured in 24 hours (at 72°F/22°C.) The mix ratio is 2:1 and provides a 20-minute work life, providing time to adjust for desired fit prior to curing. This adhesive is available in a variety of package sizes and can be dispensed in several ways to meet the demands of the job. 3M™ Scotch-Weld ™ Epoxy Adhesive DP420 is appropriate for applications that will face tough environmental challenges. Formulated to provide strong adhesion for the long-term, this resilient epoxy is another way 3M meets and exceeds the demands of even the toughest applications.
Adhesive Type | Epoxy |
Applications | Impact Resistance, Bonding |
Bond Flexibility | Semi-rigid |
Brands | Scotch-Weld™ |
Container Size (Imperial) | 13.52 fl oz |
Container Size (Metric) | 400 mL |
Features | Low Odor |
Hardness | 75 - 80 Shore D |
Industries | Construction, Consumer Goods, Electronics, General Industrial, Military and Government, Specialty Vehicle, Transportation, Metalworking, Signage, Plastic, Composite, Woodworking |
Mix Ratio Volume Base:Accelerator | 2:1 |
Open Time | 20 min @ 72 °F (22 °C) |
Performance Level | Best |
Physical Form | Flowable Liquid |
Product Form | Cartridge |
Shear Strength | 4500 psi |
Smallest Saleable Unit | Each |
Specific Gravity | 1.13 |
Specifications Met | UL 94 HB |
Storage Temperature (Celsius) | 16°C - 27°C |
Storage Temperature (Fahrenheit) | 60 °F - 80 °F |
Surface Type | Smooth |
Units per Case | 6.0 |
Volume (Imperial) | 13.53 fl oz |
Volume (metric) | 400 mL |
Work Life | 15 min - 30 min |
Safety Data Sheets
Document Number: MSDS_1124114_CA_EN
(PDF)