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3M™ Scotch-Weld™ Epoxy Adhesive DP420NS

  • 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
  • ​Non-sag formulation ensures adhesive stays where applied
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Specifications
Adhesive Type
Epoxy
Applications
Encapsulating, Impact resistant, Large Surface Lamination Assembly, Mounting and Trim Attachment, Panel to Frame/Stiffner to Panel Assembly, Potting, Sealing, Small Joint Assembly, Structural Bonding, Vibration resistant
Brand
Scotch-Weld™
Design Challenges
Impact & Shock Absorption, Noise Vibration & Harshness Control NVH
Flame Retardant
UL94 HB
Full Cure Time
24 Hours @ 72 F (22 C)
Hardness
75-80 Shore D
Indoor/Outdoor
Both
Industries
Construction, Consumer Goods, Electronics, General Industrial, Metalworking, Military and Government, Signage, Specialty Vehicle, Transportation, Woodworking
Maximum Operating Temperature (Fahrenheit)
350 Degree Fahrenheit
Mix Ratio Volume Base:Accelerator
2 : 1
Open Time
20 minutes @ 72 F (22 C)
Physical Form
Flowable Liquid
Position
Best
Product Colour
Black
Product Form
Cartridge
Product Type
Epoxy Adhesive
Set Time
10 to 30 Minute
Shear Strength
4500 psi
Shelf Life in Months (from date of manufacture)
15
Specific Gravity
1.14
Storage Temperature
60-80 F (16-27 C)
Substrate
Ceramic, Glass, HSE Plastics and Glass, Metal, Metal (Unpainted), Paint, Paints (Powder Coat, Painted Metal, Composite Panel), Plastics: HSE, MSE (ABS, Acrylic, Polycaronate, Nylon), Smooth, Stone, Wood
Substrate 1
Glass, Metal, Paint, Plastic, Easy-to-Bond (HSE), Wood
Substrate 2
Ceramic, Glass, HSE Plastics and Glass, Metal, Paint, Plastics: HSE, MSE (ABS, Acrylic, Polycaronate, Nylon), Smooth, Stone, Wood
Units per Case
12, 6
Viscosity
Non-Sag
Viscosity Range (cps) at Room Temperature
Base: 190,000-270,000, Accelerator: 60,000-130,000
Work Time
15-30 Minutes
Details
  • 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
  • ​Non-sag formulation ensures adhesive stays where applied

3M™ Scotch-Weld™ Epoxy Adhesive DP420NS is a black, toughened, non-sag, 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 DP420NS can replace mechanical fasteners, screws, rivets, and spot welds in many applications.

Our 3M™ Scotch-Weld™ Epoxy Adhesive DP420NS 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 DP420NS 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. 3M™ Scotch-Weld ™ Epoxy Adhesive DP420NS 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 has applied our expertise to meet and exceed the demands of even the toughest applications.

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