3M Scotch-Weld DP420 Epoxy Adhesive
DP420
Overview
3M Scotch-Weld DP420 is a toughened, two-part epoxy structural adhesive that provides high impact and fatigue resistance to meet demanding bonding challenges. It bonds metals, ceramics, glass, many composites and plastics, and can replace mechanical fasteners, screws, rivets and spot welds. It maintains bond strength at high and low temperatures and withstands paint bake operations up to 400°F (204°C) for 60 minutes.
Specifications
- Color
- Black or Off-white
- Base Type
- Epoxy (2-part toughened epoxy)
- Cure Type
- Room temperature cure; mix ratio 2:1 by volume
- Fixture Time
- 2 hours (handling strength)
- Full Cure Time
- 24 hours @ 73°F (23°C)
- Working Time
- 20 minutes (work life)
- Certifications
- UL 94 HB
Technical Information
- Shear strength 4380 psi
- Hardness 75-80 Shore D
- Withstands paint bake operations up to 400°F (204°C) for 60 minutes
Typical Applications
- Small joint assembly and heavy-duty mounting
- Metalworking and carbon fiber epoxy bonding
- Panel bonding in transportation and sporting goods
Industries
Technical Documents
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