- High shear and peel strength
- Easy mixing
- 20 minute worklife
- High peel and shear strength
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Adhesive Type
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Epoxy
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Applications
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Alternatives to Rivetting or Welding, Impact Resistant, Large Surface Lamination Assembly, Mounting & Trim Attachment, Panel & Trim Bonding, Panel to Frame/Stiffner to Panel Assembly, Small Joint Assembly, Structural Bonding, Vibration resistant
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Brand
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Scotch-Weld™
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Design Challenges
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Impact & Shock Absorption, Noise Vibration & Harshness Control NVH
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Flame Retardant
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UL94 HB
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Full Cure Time
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24 Hours @ 72 F (22 C)
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Hardness
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75-80 Shore D
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Indoor/Outdoor
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Both
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Industries
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Composite, Construction, Consumer Goods, Electronics, General Industrial, Metalworking, Military and Government, Plastic, Signage, Specialty Vehicle, Transportation, Woodworking
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Maximum Operating Temperature (Fahrenheit)
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175 °F
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Mix Ratio Volume Base:Accelerator
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2 : 1
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Open Time
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20 min @ 72 °F (22 °C)
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Physical Form
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Flowable Liquid
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Position
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Best
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Product Form
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Cartridge
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Product Type
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Epoxy Adhesive
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Set Time
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10 min - 30 min
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Shear Strength
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4500 psi
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Shelf Life in Months (from date of manufacture)
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15
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Specific Gravity
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1.13
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Storage Temperature
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60-80 F (16-27 C)
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Substrate
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Ceramic, Glass, High Surface Energy, (400-1100 Dynes/cm), Metal, Paint, Smooth, Wood
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Substrate 2
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Ceramic, Glass, Glass & Ceramics, 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
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Units per Case
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12
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Viscosity
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Self-leveling
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Viscosity Range (cps) at Room Temperature
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Base: 190,000-270,000, Accelerator: 60,000-130,000
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- High shear and peel strength
- Easy mixing
- 20 minute worklife
- High peel and shear strength
- General industrial, sporting goods, solar energy, wind energy, composites, electronics, military, transportation and aerospace
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.
3M™ Scotch-Weld™ Epoxy Adhesive DP420 maintains bond strength at high and low temperatures and can withstand paint bake operations up to 400°F (204.4°C) 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 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 job. 3M™ Scotch-Weld ™ Epoxy Adhesive DP420 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 meets and exceeds the demands of even the toughest applications.
Suggested Applications
- Designed for general industrial, sporting goods, solar energy, wind energy, composites, electronics, military, transportation and aerospace applications
- Ideal for joining, gluing, attaching, assembling, combining, repairing, , panel bonding, adhering, and structural bonding
- Alternative to riveting or welding, bolt setting, frame building, rivet free assembly
