3M DP620NS
Harmonization Code : 3919.10.80 | Other self-adhesive plastic rolls not exceeding 20 cm wide.
Main features
- 20-Minute Open Time
- 1:1 Meter-Mix Processing
- 19.9 MPa Aluminum Lap Shear
Product Description
3M™ Scotch-Weld™ Urethane Adhesive DP620NS Black is a rapid-setting, two-component polyurethane structural adhesive supplied in a 1:1 ratio duo-pak cartridge for use with the 3M™ EPX™ Applicator System. The components are automatically mixed and dispensed as a bubble-free, non-sag black paste. A 20-minute open time provides additional assembly time before parts must be joined and fixed, while handling strength is reached in approximately 4 hours at 23 °C. The cured adhesive combines 110% strain at break, 50 Shore D hardness, low-temperature flexibility, and a continuous temperature range of -51 to 121 °C. It bonds a range of metal, plastic, and fiber-reinforced substrates under the documented preparation conditions.
Key features
- 20-minute open time: Provides a medium working window for positioning and assembling bonded parts.
- Controlled 1:1 dispensing: Duo-pak packaging supports automatic mixing and bubble-free, non-sag application through the 3M™ EPX™ system.
- Multi-substrate bonding: Documented overlap shear data cover aluminum, cold-rolled steel, ABS, polycarbonate, acrylic, fiber-reinforced plastic, and PVC.
Applications / Suitable for
- Prototype building
- Bonding dissimilar substrates
- Structural adhesive and sealant applications in construction
- General structural bonding and sealing
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Mechanical Properties
Thermal Properties
Additional Information
As-supplied / before-processing properties
Typical values for the individual components and mixed adhesive. These values are representative and are not intended for specification purposes.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Mixed color | Black | — | Typical mixed adhesive |
| Mix ratio by volume | 1:1 | B:A | As supplied in a duo-pak cartridge |
| Base density | 1.08–1.12 | — | part B |
| Accelerator density | 1.14–1.19 | — | part A |
| Base viscosity | 3,000–6,000 | cP | 23 °C; Brookfield CP #52 at 50 rpm |
| Accelerator viscosity | 1,000–5,000 | cP | 23 °C; Brookfield CP #52 at 50 rpm |
| Open time | 20 | min | Maximum time after application before the bond is closed and fixed |
| Time to handling strength | 4 | h | 23 °C; minimum time to reach 0.3 MPa overlap shear strength |
