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3M™ Scotch-Weld™ Epoxy Adhesive DP420, Off-White, 50 ml Duo-Pak

  • 3M Product Number DP420NS
  • 3M ID 7100320459

BOND VERSATILITY: Bonds metals and composites, enabling multi-material bonding in demanding production environments

STRUCTURAL STRENGTH: Can replace screws, rivets, mechanical fasteners, and spot welds, supporting lighter assemblies and simplified fabrication

MEETS 94 HB: Meets UL 94 HB standards, helping manufacturers comply with applicable flammability requirements

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Details

Highlights

  • BOND VERSATILITY: Bonds metals and composites, enabling multi-material bonding in demanding production environments
  • STRUCTURAL STRENGTH: Can replace screws, rivets, mechanical fasteners, and spot welds, supporting lighter assemblies and simplified fabrication
  • MEETS 94 HB: Meets UL 94 HB standards, helping manufacturers comply with applicable flammability requirements
  • LIGHT-COLORED EPOXY: Its 2:1 mix ratio formula dispenses as a flowable, off-white adhesive for industrial applications requiring a light colour appearance
  • WORKING TIME: Provides a 20-minute working time and handling strength in 2 hrs
  • TOUGHENED DURABILITY: Toughened formula resists impact for a durable bond
  • ENVIRONMENTAL RESISTANCE: Formulated to maintain bond integrity after exposure to humidity, temperatures, diesel, gasoline, salt water, and water
  • ADAPTABLE CURING: 24-hour room temperature cure that can be accelerated through heat, providing adaptability to variable curing processes

3M™ Scotch-Weld™ Epoxy Adhesive DP420 Off-White is a toughened epoxy adhesive designed to combine the proven bond performance of the DP420 base with a light colour appearance, while meeting applicable UL 94 HB requirements. Its 2:1 mix ratio formula dispenses as a flowable, off-white adhesive that provides a 20-minute working time window — supporting repositioning and realignment for accurate component placement during assembly.

3M™ Scotch-Weld™ Epoxy Adhesive DP420 Off-White is a two-part, flowable epoxy adhesive designed to resist impact, making it well suited for structural bonding of metals and composites. It reaches handling strength in approximately 2 hours and can also be heated to accelerate cure, providing flexibility for variable curing workflows. Once fully cured in 24 hours at room temperature — 23 °C — 3M™ Scotch-Weld™ Epoxy Adhesive DP420 Off-White delivers structural bond performance that may be suitable to replace screws, rivets, mechanical fasteners, and spot welds in most applications, helping simplify assembly, reduce weight, and improve stress distribution across the bond line. Its toughened epoxy formula helps maintain bond integrity when exposed to humidity, temperatures, diesel, gasoline, salt water, and water. Engineered to tolerate high heat exposure of up to 200 °C for up to 30 minutes, this adhesive is compatible with common paint bake processes. It is well suited for panel bonding, composite fabrication, potting, and other bonding uses in transportation, metalworking, sporting goods, and general manufacturing. 3M™ Scotch-Weld™ Epoxy Adhesive DP420 Off-White is supplied in bulk and Duo-Pak cartridges in 50 ml, 200 ml, and 400 ml sizes. It is compatible with the 3M™ EPX Applicator System for accurate metering, mixing, and dispensing. For manufacturers where colour restrictions and flammability considerations are priorities, 3M™ Scotch-Weld™ Epoxy Adhesive DP420 Off-White delivers the structural bond durability demanding industrial assembly applications.

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Adhesive Type Epoxy
Application Attaching, Bonding, Encapsulating, Mounting, Potting, Small Joint Assembly, Trim attachment
Brands Scotch-Weld™
Container Size (Metric) 50 Milliliter
Container Type Cartridge
Design Challenges Impact & Shock Absorption, Noise Vibration & Harshness Control NVH
Features Low Odor
Full Cure Time 24 Hours @ 73 F
Mix Ratio Volume Base:Accelerator 2:1
Open Time 20 min
Performance Level Best
Physical Form Liquid
Product Form DuoPak
Shear Strength 4420 Pound_Per_Square_Inch
Storage Temperature (Celsius) 16°C - 27°C
Surface Type Smooth
Time to Handling Strength 2 hr