3M DP105
Harmonization Code : 3506.91.90.99 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other
Main features
- Retains Its Clear
- Flexible Cured Adhesive
- 4-Minute Working Window
Product Description
3M™ Scotch-Weld™ Epoxy Adhesive DP105 Clear is a fast-setting, very flexible, two-part epoxy adhesive. Engineered with a 1:1 mix ratio, this versatile formulation is ideal for bonding dissimilar surfaces where differing thermal coefficients of expansion may pose challenges. It uniquely retains its clear, colorless properties longer than most standard 5-minute epoxies, making it suitable for applications requiring both high peel strength and a clean appearance.
Key features
- Highly flexible: Retains elasticity when cured, making it ideal for bonding dissimilar materials subject to thermal expansion.
- Clear appearance: Formulated to remain clear and colorless significantly longer than typical 5-minute epoxies.
- Fast-setting strength: Provides a 4-5 minute work life with rapid strength buildup and high peel performance.
Applications / Suitable for
- Bonding dissimilar surfaces subject to thermal expansion
- Applications requiring a clear, colorless adhesive line
- Assemblies requiring high peel strength and flexibility
Technical Specifications
General Properties
Physical Properties
Mechanical Properties
Thermal Properties
Electrical Properties
Additional Information
As-supplied / before-processing properties
Typical properties; these values are not intended for use in preparing specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Mix Ratio by Volume | 1:1 | - | B:A |
| Mix Ratio by Weight | 1:0.97 | - | B:A |
| Color | Clear | - | Base |
| Color | Clear | - | Accelerator |
| Base Resin | Epoxy | - | - |
| Accelerator Resin | Mercaptan | - | - |
| Base Net Weight | 1.09-1.14 | g/cm³ | (9.1-9.5 lb/gal) |
| Accelerator Net Weight | 1.13-1.17 | g/cm³ | (9.4-9.8 lb/gal) |
| Viscosity | 1,000-5,000 | cP | Base at 27°C (80°F) |
| Viscosity | 8,000-16,000 | cP | Accelerator at 27°C (80°F) |
| Open Time | 5 | minutes | - |
| Tack Free Time | 10 | minutes | 3M C3173 |
| Set Time | 20 | minutes | at 23°C (73°F) |
| Worklife | 5 | minutes | 2g mixed at 23°C (73°F) |
| Worklife | 4 | minutes | 20g mixed at 23°C (73°F) |
After-processing / final-state properties
Typical properties; these values are not intended for use in preparing specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Cured Color | Clear | - | - |
| Shore Hardness | 27 | Shore D | ASTM D2240 at 23°C (73°F) |
| Overlap Shear Strength | 2000 | lb/in² | Etched Aluminum, 7 d cure at 23°C (73°F) |
| T-Peel Adhesion | 35 | lb/in | ASTM D1876, Etched Aluminum at 23°C (73°F) |
| Elongation | 120 | % | ASTM D882 at 23°C (73°F) |
| Tensile Strength | 600 | lb/in² | ASTM D882 at 23°C (73°F) |
| Thermal Conductivity | 0.085 | (btu-ft)/(h-ft²-°F) | C177 at 110°F |
| Dielectric Constant | 9.2 | - | ASTM D150, 1 KHz at 23°C (73°F) |
| Volume Resistivity | 1.5E+10 | Ohm-cm | ASTM D257 at 23°C (73°F) |
| Glass Transition Temperature (Tg) | 15 | °C | (59°F) Mid-Point |
