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The 3M 7100010680 is a high-performance two-part epoxy adhesive with a unique formula made for demanding small-joint and mounting assemblies where durability matters. Packaged as a 13.52 fl oz cartridge, this 3M DP420NS scotch-weld epoxy adhesive offers a non-sag, flowable consistency suitable for vertical and edge bonding applications. With a 20 minute open time at 72°F (22°C), technicians retain sufficient positioning time before the set begins while handling complex assemblies. Typical handling strength is achieved in approximately two hours, and full cure is reached in 24 hours at 72°F, enabling predictable production schedules. DP420NS exhibits a nominal hardness of 75–80 Shore D, delivering a rigid bond that resists deformation under load and impact over time. The adhesive attains a high shear strength rated at 4500 psi, making it appropriate for load-bearing joints between metal, aluminum, and wood substrates. Rated for continuous service temperatures up to 350°F, this black 3M 7100010680 epoxy supports high-temperature-resistant epoxy applications in many assemblies. The UL94 HB flame retardant classification increases safety margins in applications where flame performance is an evaluation criterion. Non-sag rheology ensures the material remains where applied during cure, minimizing waste and improving joint consistency on complex surfaces. 3M two-part epoxy can be used indoors or outdoors when cured, offering environmental versatility for field repairs and manufacturing environments. Its specific gravity (1.13) and measured viscosity make the cartridge suitable for time-pressure dispensing systems and manual application. The product’s shock- and impact-toughened formulation improves fatigue resistance in assemblies subject to vibration and intermittent loading. Service technicians frequently ask for 3M 7100010680 when replacing mechanical fasteners with bonded joints to reduce stress concentrations and weight. Design engineers value the adhesive for bonding dissimilar substrates such as metals to composites while maintaining good dimensional stability. Storage recommendations preserve shelf life and ensure the cartridge dispenses reliably when placed into production workflows. The black color of 3M DP420NS can aid visual inspection of bead placement and coverage in assembly verification processes. As a two-part epoxy, it provides superior mechanical and chemical resistance compared with many single-part adhesives used for similar assemblies. Overall, 3M 7100010680 scotch-weld epoxy adhesive is positioned for high-performance bonding tasks that require heat tolerance, impact resistance, and predictable cure.
High Shear Strength
Delivers robust structural bonds for metal, aluminum and wood assemblies where 3M 7100010680 must withstand load and shear stress.
350°F Maximum Operating Temperature
Supports high-temperature-resistant epoxy applications, allowing bonded joints to sustain elevated service temperatures safely.
20 Minute Open Time / 2 Hour Set Time
Provides adequate working time for alignment and fixturing while enabling faster handling and reduced cycle time on production lines.
Non-Sag, Flowable Cartridge Formulation
Non-sag consistency simplifies application on vertical surfaces and complex geometries using standard dispensing equipment.
Toughened for Impact and Fatigue Resistance
Toughened epoxy chemistry improves long-term durability in dynamic environments and reduces premature joint failure.
| Manufacturer Part Number | 7100010680 |
| Adhesive Type | Epoxy |
| Assembly Type | Small Joint Assembly |
| Color Family | Black |
| Container Size (Inch) | 13.52 fl oz (US) |
| Container Size (mm) | 400.0 ml |
| Design Challenges | Impact & Shock Absorption |
| Flame Retardant | UL94 HB |
| Full Cure Time | 24 Hours @ 72 F (22 C) |
| Hardness | 75-80 Shore D |
| Indoor/Outdoor | Both |
| Maximum Operating Temperature (Fahrenheit) | 350.0 Degree Fahrenheit |
| Open Time | 20 min @ 72 °F (22 °C) |
| Physical Form | Flowable Liquid |
| Product Color | Black |
| Product Form | Cartridge |
| Product Number | DP420NS |
| Product Type | Epoxy Adhesive |
| Set Time | 2 Hour |
| Shear Strength | 4500.0 psi |
| Specific Gravity | 1.13 |
| Storage Temperature | 60-80 F (16-27 C) |
| Storage Temperature (Celsius) | 16°C - 27°C |
| Substrate | Wood |
| Substrate 1 | Aluminum |
| Substrate 2 | Metal |
| Viscosity | Non-sag |
| Viscosity Range (cps) at Room Temperature | 180,000 |
| Volume (Inch) | 13.52 fl oz |
| Volume (mm) | 400.0 mL |
| Application | Sealing, Potting and Encapsulating , Hard Disk Drive Component Assembly , Bonding Composite Materials , Small Joint Assembly , Mounting & Trim Attachment , Bonding |
What size is the 3M 7100010680 cartridge?
The 3M 7100010680 comes in a 13.52 fl oz (400 mL) cartridge suitable for time-pressure dispensers and manual dispensing.
Can DP420NS replace mechanical fasteners in assemblies?
Yes, when designed properly, 3M DP420NS scotch-weld epoxy adhesive can replace mechanical fasteners to reduce weight and distribute stresses across bonded surfaces.
What are the benefits of two-part adhesives vs. single-part?
3M Two-part adhesives like DP420NS typically provide higher mechanical strength, better chemical and heat resistance, and controlled cure compared with single-part alternatives.
How long until bonded parts can be handled and in service?
The DP420NS reaches handling strength in about 2 hours and achieves full cure in 24 hours at 72°F (22°C); cure times vary with temperature and joint thickness.
Is DP420NS suitable for high-temperature applications?
Yes, the adhesive is rated for maximum operating temperatures up to 350°F, making it appropriate for many elevated-temperature service environments.
This product can expose you to materials and/or chemicals including arsenic, lead, and other materials and/or chemicals which are known to the state of California to cause cancer and/or reproductive harm.
For more information, visit www.P65Warnings.ca.gov
