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3M™ Scotch-Weld™ Epoxy Adhesive 420

Products
  • 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
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Specifications
Adhesive Type
Epoxy
Brand
Scotch-Weld™
Colour
Black, Off White
Design Challenges
Impact & Shock Absorption, Noise Vibration & Harshness Control NVH
Flame Retardant
UL94 HB
Full Cure
24 Hours @ 72 F (22 C)
Indoor/Outdoor
Both
Industries
Composite, Metalworking, Plastic, Specialty Vehicle, Woodworking
Open Time
20 minutes @ 72 F (22 C)
Physical Form
Flowable Liquid
Position
Best
Product Form
Cartridge
Product Type
Epoxy Adhesive
Shear Strength at 72 Degrees F (22 Degrees C)
4500 psi
Shelf Life in Months (from date of manufacture)
15
Storage Temperature
60-80 F (16-27 C)
Viscosity
Self-Leveling
Volume (metric)
50 mL
Work Time
15-30 Minutes
Details

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.

When using a Duo-Pak (DP) size adhesive, rely on 3M dispensing equipment for convenient and accurate metering, mixing and dispensing.

High Peel and Shear Strength Maintains Lasting Bond at High and Low Temperatures
3M™ Scotch-Weld™ Epoxy Adhesive DP420 maintains bond strength at high and low temperatures and can withstand paint bake operations up to 400°F 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 Off-White meets the requirements for UL 94 HB.

Recommended Applications

  • Small joint assembly
  • Heavy-duty mounting assembly
  • Metalworking
  • Carbon fiber epoxy bonding

20 Minute Work Life Provides Time for Positioning and Adjustment
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 user and the job.

  • 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