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Description for 3M DP420NS Scotch-Weld Epoxy Adhesive
It is high performance, two-part epoxy adhesives offering outstanding shear and peel adhesion, and very high levels of durability.<br/>Application Type Bond 1 Part or 2 Part 2-Part Material Form Liquid Industry Automotive Wheels (Assembly) Manufacturer 3M Chemistry Epoxy Cure Method 2-Part Cure Viscosity (cPs) Non sag -
Technical Data for 3M DP420NS Scotch-Weld Epoxy Adhesive
Overview
Specifications
Cure Specs
Viscosity (cPs) Non sag Test Method Fixture or Handling Strength Time (min) 120 Test Method Work / Pot Time (min) 20 Test Method Mix Ratio 2:1 (by volume), 2:0.97 (by weight) Bond Strength
Structural/Load-Bearing Structural Peel Strength (piw) 50, High Test Method Shear Strength (psi) 4,500, 4,500, 1,250, High Test Method Business Information
Shelf Life Details Store products at 60-80°F (15-27°C) or refrigerate for maximum shelf life.;These products have a shelf life of 15 months in original containers at room temperature. Shelf Life Temperature (°F) 59 to 81 Shelf Life (mon) 15 -
Best Practices for 3M DP420NS Scotch-Weld Epoxy Adhesive
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Design
For the best adhesive bond, there should be at least a .003"-.005" gap between the parts for shear and 0.015" - 0.020" for peel. The gap should be as consistent as possible.
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Fixture or Handling Strength Time Test Methods
Fixture or Handling Strength Time | Fixture-Handling Strength Time Temperature |
---|---|
120 min | 24°C |
Viscosity Test Methods
Viscosity | Test Method |
---|---|
Non sag |
Work / Pot Time Test Methods
Work / Pot Time | Temperature |
---|---|
20 min | 24°C |
Peel Strength Test Methods
Peel Strength | Type | Test Temperature |
---|---|---|
50 piw | T-Peel Strength | 24°C |
High |
Shear Strength Test Methods
Shear Strength | Type | Test Temperature |
---|---|---|
4,500 psi | Overlap Shear Strength | -55°C |
4,500 psi | Overlap Shear Strength | 24°C |
1,250 psi | Overlap Shear Strength | 82°C |
High |

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