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 & 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 °F
Mix Ratio Volume Base:Accelerator
2 : 1
Open Time
20 min @ 72 °F (22 °C)
Physical Form
Flowable Liquid
Position
Best
Product Colour
Black
Product Form
Cartridge
Product Type
Epoxy Adhesive
Set Time
10 min - 30 min
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, High Surface Energy, (400-1100 Dynes/cm), Metal, Metal (Unpainted), Paint, Paint (Powder Coat, Painted Metal, Composite Panel), Plastic: HSE, MSE (ABS, Acrylic, Polycaronate, Nylon), Smooth, Stone, Wood
Substrate 1
Glass, Metal, Paint, Plastic, Easy-to-Bond (HSE), Wood
Substrate 2
Ceramic, Glass, High Surface Energy, (400-1100 Dynes/cm), Metal, Metal (Unpainted), Paint, Paint (Powder Coat, Painted Metal, Composite Panel), Plastic: 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 min - 30 min
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.