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SKU 7100320205
Legacy SKU 62329935316
UPC 00068060756565
Product Number DP420NS

3M Scotch-Weld Epoxy Adhesive DP420NS is a black, toughened, non-sag, two-part epoxy structural adhesive that provides good strength along with high impact and fatigue resistance to meet demanding bonding challenges. 3M Scotch-Weld Epoxy Adhesive DP420NS can replace mechanical fasteners, screws, rivets and spot welds in many applications.

  • High peel and shear strength maintains lasting bond at high and low temperatures
  • Toughened for impact and fatigue resistance
  • 20 minute work life provides time for positioning and adjustment
  • Non-sag formulation ensures adhesive stays where applied
  • Try the new 3M™ Scotch-Weld™ Digital Dispensing Assistant and experience shorter machine setup time with a free new automation tool for time-pressure systems
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On it's way to you January 7   

Qty

Minimum Order 6 Items
Order Increment 6 Items
  Multiple Application Use
  Versatile Across Industries
  Global Shipping
  Fantastic Price
Product Dimensions
Imperial Metric
Weight 1.0049 lbs
Width 3-3/4 in
Length 2.1878 in
Height 9 in
Shipping Dimensions
Weight 6.683 lb
Length 8.20984 in
Width 6.25984 in
Height 9.88976 in

PRODUCT FAQ

  1. Certainly! Here are some common questions about the 3M™ Scotch-Weld™ Epoxy Adhesive DP420NS, Black, 400 mL Duo-Pak, 6/Case

    Is this epoxy adhesive suitable for use on metal surfaces?

  2. Yes, the 3M™ Scotch-Weld™ Epoxy Adhesive DP420NS is designed for bonding metal components together.

    How long does it take for the adhesive to cure once applied?

  3. The curing time of this epoxy adhesive can vary depending on factors such as temperature and humidity. Generally, it achieves handling strength in approximately 20 minutes.

    Can I paint or finish over this black epoxy adhesive after it has cured?

  4. Yes, you can paint or finish over the cured epoxy adhesive to match your project's requirements.

    How should I store any unused portion of the product after opening the Duo-Pak?

  5. It is recommended to store any remaining product in a cool and dry place with proper ventilation to maintain its integrity for future use.

For industrial/occupational use only. Not for consumer sale or use.
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.
Product Description: 3M Scotch-Weld Epoxy Adhesive DP420NS

When using a Duo-Pak (DP) size adhesive, rely on 3M dispensing equipment for convenient and accurate metering, mixing, and dispensing.

High Peel and Shear Strength Maintains Lasting Bond at High and Low Temperatures

3M Scotch-Weld Epoxy Adhesive DP420NS is designed to maintain bond strength even in extreme temperature conditions. It can withstand paint bake operations up to 400F for 60 minutes. This adhesive is suitable for a wide range of substrates, including metals, ceramics, wood, glass, composites, and plastics. It is an excellent choice for indoor bonding applications such as joining, gluing, potting, panel bonding, and structural bonding. Additionally, 3M Scotch-Weld Epoxy Adhesive DP420NS meets the requirements for UL 94 HB.

Recommended Applications

  • Small joint assembly
  • Heavy-duty mounting assembly
  • Metalworking
  • Carbon fiber epoxy bonding

20 Minute Work Life Provides Time for Positioning and Adjustment

3M Scotch-Weld Epoxy Adhesive DP420NS offers a 20-minute work life, allowing ample time for positioning and adjustment before curing. It reaches handling strength in approximately two hours and is fully cured in 24 hours at 72F/22C. The mix ratio is 2:1. This adhesive is available in various package sizes and can be dispensed in multiple ways to meet user and job requirements.

Toughened for Impact and Fatigue Resistance

3M Scotch-Weld Epoxy Adhesive DP420NS is specifically formulated to withstand tough environmental challenges. Its toughened composition ensures strong adhesion for long-term durability. This epoxy adhesive demonstrates 3M's commitment to meeting and exceeding the demands of even the most demanding applications.

What are Epoxy Adhesives?

Epoxy adhesives belong to the class of adhesives known as "structural adhesives," which also includes polyurethane, acrylic, cyanoacrylate, and others. Epoxies are liquid reactive polymers that undergo a chemical reaction when mixed and cure to form a solid plastic material. Once the two parts are mixed in their specified ratio, they begin the curing process, providing a limited work life during which the adhesive can be applied and the surfaces positioned as needed. This work life can range from a few minutes to several hours.

Epoxy adhesives offer high shear and peel strengths, superior heat and chemical resistance, and better overall performance compared to other common adhesives. They are widely used in various industries, including building and home construction, aircraft and automobile manufacturing, sports equipment assembly, and many other applications. Epoxy adhesives are known for their ease of use, mechanical strength, chemical resistance, and versatility in bonding different materials such as wood, metal, glass, stone, and plastics.

Industrial uses for epoxies extend beyond adhesives and include coatings and composite materials like carbon fiber and glass-reinforced composites. Their ability to flow and conform to the work area, strong adhesion, chemical and heat resistance, and exceptional mechanical and electrical insulating properties make them the preferred choice in many industries.