3M™ Scotch-Weld™ Epoxy Adhesive DP420

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BONDS A VARIETY OF SUBSTRATES: For metals, ceramics, wood, glass, many composites and plastics

MULTIPLE APPLICATIONS: Can be used in joining, gluing, potting, panel and structural bonding in sporting goods, metalworking, general industrial, and transportation industries

LONG-LASTING BONDS: Has high shear strength to promote durability

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  • BONDS A VARIETY OF SUBSTRATES: For metals, ceramics, wood, glass, many composites and plastics
  • MULTIPLE APPLICATIONS: Can be used in joining, gluing, potting, panel and structural bonding in sporting goods, metalworking, general industrial, and transportation industries
  • LONG-LASTING BONDS: Has high shear strength to promote durability
  • FOR TOUGH APPLICATIONS: Offers high impact and fatigue resistance
  • OPPORTUNITY TO ADJUST AND REPOSITION: Allows up to 20 minutes of open working time
  • FULL CURE STRENGTH: Reaches a full cure in 24 hours at a temperature of 73 °F (23 °C)
  • CERTIFICATIONS: Is UL 94 HB Certified
  • PRODUCT OPTIONS: Available in bulk form or a Duo-Pak (DP) and black or off-white
  • DIGITAL DISPENSING ASSISTANT: Help reduce setup time using a free automation tool for time-pressure automated systems

3M™ Scotch-Weld™ Epoxy Adhesive DP420 is a toughened, two-part epoxy structural adhesive that provides high impact and fatigue resistance to meet demanding bonding challenges. It works well on a variety of substrates, such as metals, ceramics, glass, many composites and plastics. This adhesive can replace mechanical fasteners, screws, rivets and spot welds in many applications. It can be used in joining, gluing, potting, panel bonding and structural bonding in sporting goods, metalworking, general industrial and transportation segments. The mix ratio is 2:1 and provides 20 minutes of work-life, allowing time to adjust for the desired fit prior to curing. This adhesive reaches handling strength in approximately two hours and is fully cured in 24 hours at 72 °F (22 °C). It maintains bond strength and can withstand paint bake operations up to 400 °F for 60 minutes. When using this, or other Duo-Pak (DP) size adhesives, rely on 3M Applicators for convenient and accurate metering, mixing and dispensing.

3M™ Scotch-Weld™ Digital Dispensing Assistant

Get improved adhesive processing results when using Time-Pressure Dispensing Equipment. Be confident you’re dispensing the right amount of adhesive to reduce waste and rework. Temperatures affect adhesive flow rates and disrupt repeatable processing which can lead to poor bonding outcomes. Calibrating time-pressure dispensing systems every time the temperature changes can be a lengthy process. The 3M™ Scotch-Weld™ Digital Dispensing Assistant uses extensive laboratory testing data and 3M materials science expertise to make it easy to predict the recommended pressure setting. It is free to use and accounts for variables such as temperature, aging, and lot control. After a simple, guided dispenser calibration, just enter the lot code information from the adhesive cartridge as well as the current temperature and desired flow rate. The Digital Dispensing Assistant will recommend the ideal pressure setting.

When using a Dispensing Equipment, rely on Bonding and Assembly for convenient and accurate metering, mixing, and dispensing.

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3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use.  Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice.  Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage.  For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.