• Item Name: 3M™ Scotch-Weld® EPX® DP105
• Manufacturer: 3M
• Technologies: Two-component, fast-curing, flexible epoxy adhesive
• Color: Clear
• Cure Type: Ambient temperature, 4–5 minutes work life, full strength in 48 hours
• Package Size: Contact to Techniq VN for details
• Shelf Life: 12 months
3M™ Scotch-Weld™ EPX™ DP105 is a two-part, fast-setting, flexible, clear epoxy adhesive/sealant. It features a 4-minute work life, cures to a clear appearance even in large masses, and provides high peel strength with excellent flexibility, making it ideal for bonding dissimilar substrates with different thermal expansion rates. It uses a 1:1 mix ratio for convenient dispensing and application.
Bonding of dissimilar materials (metals, plastics, glass, wood, composites)
Applications where flexibility and thermal expansion mismatch resistance are required
Transparent bonding applications where clarity retention is essential
General industrial assembly, repair, and sealing
| Property | Base | Accelerator | Mixed |
|---|---|---|---|
| Specific Gravity | 1.11 | 1.15 | – |
| Viscosity @ 27 °C (cP) | 2,000 | 11,000 | – |
| Mix Ratio (by weight) | 100 | 97 | – |
| Mix Ratio (by volume) | 100 | 100 | – |
| Colour | Clear | Clear | Clear |
| Work Life (23 °C) | 2 g: 5 min / 20 g: 4 min | – | ~4–5 minutes |
| Tack-Free Time | – | – | 10 minutes |
| Handling Strength | – | – | 20 min @ 23 °C |
| Full Cure | – | – | 48 hrs @ 23 °C (1 week for full performance) |
| Shelf Life | – | – | 12 months (15–25 °C storage) |
| Property | Value |
|---|---|
| Colour | Clear |
| Hardness (Shore D, ASTM D2240) | 39 |
| Elongation | 120 % |
| Tensile Strength | 4.2 N/mm² |
| Substrate | Shear Strength (N/mm²) |
|---|---|
| Etched Aluminium | 14.0 |
| Sanded Aluminium (60 Grit) | 10.5 |
| Cold Rolled Steel | 9.1 |
| Wood (Pine) | 2.1 |
| Glass (Borosilicate) | 1.4 |
| Glass + 3M 3901 Primer | 1.7 |
| Polycarbonate | 2.8 |
| Acrylic | 1.7 |
| GRP | 9.8 |
| ABS | 2.1 |
| PVC | 3.6 |
| Polypropylene | 0.5 |
| Temperature (°C) | Shear Strength (N/mm²) | Peel Strength (DaN/cm) |
|---|---|---|
| –55 | 24.6 | 6.25 |
| 21 | 14.1 | 0.89 |
| 49 | 2.8 | 0.35 |
| 65 | 1.8 | 0.18 |
| 82 | 1.0 | 0.10 |
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