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3M™ Scotch-Weld™ Epoxy Adhesive DP420

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Specifications
Adhesive Type
Epoxy
Applications
Alternatives to Rivetting or Welding, Hard Disk Drive Component Assembly, Impact resistant, Large Surface Lamination Assembly, Mounting and Trim Attachment, Panel & Trim Bonding, Panel to Frame/Stiffner to Panel Assembly, Small Joint Assembly, Structural Bonding, Vibration resistant
Brand
Scotch-Weld™
Colour
Black, Off-White
Consumer Label
No
Design Challenges
Impact & Shock Absorption, Noise Vibration & Harshness Control NVH
Flame Retardant
UL94 HB
Full Cure
24 Hours @ 72 F (22 C)
Hardness
75-80 Shore D
Indoor/Outdoor
Both
Industries
Composite, Construction, Consumer Goods, Electronics, General Industrial, Metalworking, Military and Government, MRO, Plastic, Rubber, Signage, Specialty Vehicle, Transportation, Woodworking
Maximum Operating Temperature (Fahrenheit)
175 Degree Fahrenheit
Mix Ratio Volume Base:Accelerator
2 : 1
Net Weight
18.3
Open Time
20 minutes @ 72 F (22 C)
Physical Form
Flowable Liquid
Position
Best
Product Form
Cartridge, Each
Product Type
Epoxy Adhesive
Set Time
10 to 30 Minute
Shear Strength at 72 Degrees F (22 Degrees C)
4500 Pound-Force Per Square Inch
Shelf Life in Months (from date of manufacture)
15
Specific Gravity
1.13
Storage Temperature
60-80 F (16-27 C), 72 Degree Fahrenheit
Substrate 2
Ceramic, Glass, Glass & Ceramics, 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
Substrates
Ceramic, Glass, Glass & Ceramics, 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
Viscosity
Self-Leveling
Viscosity Range (cps) at Room Temperature
30,000, Base: 190,000-270,000, Accelerator: 60,000-130,000
Volume
1.2 Fluid Ounce (US), 1.3 Fluid Ounce (US), 13.5 Fluid Ounce (US), 6.8 Fluid Ounce (US)
Volume (metric)
200 Millilitre, 35 Millilitre, 37 Millilitre, 400 Millilitre
Details

3M™ Scotch-Weld™ Epoxy Adhesive DP420 is a toughened, two-part epoxy that adheres well to a variety of substrates such as metals, ceramics, wood, many plastics, ceramics, and glass. It has a 2:1 mix ratio, a 20 minute worklife, and reaches handling strength in approximately two hours. It maintains bond strength at high and low temperatures and can withstand paint bake operations up to 400°F/200°C for 30 minutes.

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