Description
3M Scotch-Weld DP-490 Black Epoxy Adhesive 50ml Dual Cartridge — BOLTON SKU 54380.
About the 7100200499 Industrial Adhesive
3M Scotch-Weld Epoxy Adhesive DP490 is a black two-component epoxy designed for applications where high toughness and strength are required, with heat and environmental resistance. The base is black and the accelerator white; they are combined at a 2:1 mix ratio by volume. 3M lists a 90 minute worklife for a 45 g mixed mass at 23 °C and states that application to the substrates should be made within 90 minutes, with larger quantities or higher temperatures shortening that window. Bonds are cured at 16 °C or above until firm and reach full strength in 48 hours at 24 °C; heat up to 93 °C may be used to speed curing. The product is non-sag, so it can be applied to vertical surfaces, and 3M reports overlap shear of 23 MPa on sandblasted aluminium at 23 °C. This entry is the 50 ml Duo-Pak cartridge, 3M ID 7100200499, dispensed through the 3M EPX applicator system.
Key specifications
| Type | Two-component epoxy adhesive, black |
|---|---|
| Base / accelerator colour | Black / white |
| Mix ratio by volume (B:A) | 2:1 |
| Worklife (45 g mixed, 23 °C) | 90 min (3M T-234) |
| Time to full strength | 48 h at 24 °C (ASTM D1002 / ISO 4587, etched aluminium) |
| Overlap shear, aluminium (sandblasted, 23 °C) | 23 MPa |
| Overlap shear, aluminium at 82 °C | 9.5 MPa |
| Shore D hardness (7 d) | 77 |
| Application behaviour | Non-sag; suitable for vertical surfaces |
| Shelf life from date of production | 39 months (cartridges), stored at 16–27 °C |
| Pack | 50 ml Duo-Pak dual cartridge (3M ID 7100200499) |
Typical applications
DP490 is used for structural bonding where a tough, gap-tolerant joint is needed — metal and composite panels, stiffeners and brackets in aerospace, rail and industrial assembly. Its non-sag rheology suits vertical and overhead bond lines, and the 90 minute worklife gives time to position and align larger parts before fixing. The 50 ml Duo-Pak size suits bench work, prototype build and MRO repair rather than production-line volumes.
Supplied by BOLTON Technical Equipment Supplies against request for quotation. Add this item to your RFQ basket to request pricing, lead time and documentation requirements (e.g. CoC, datasheets or test reports where applicable).
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