Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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• Item Name: 3M™ Scotch-Weld™ Epoxy Adhesive DP100
• Manufacturer: 3M
• Technologies: Two-part epoxy resin
• Color: Clear
• Cure Type: Ambient temperature, heat accelerated up to 93°C for faster curing
• Package Size: Contact to Techniq VN for details.
• Shelf Life: 24 months
3M™ Scotch-Weld™ Epoxy Adhesive DP100 is a two-part, clear epoxy adhesive designed for fast curing, high flow, and easy mixing. It offers good machinability, develops strength rapidly, and meets UL 94 HB flammability standards. Available in Duo-Pak cartridges and bulk forms.
Structural bonding of metals, plastics, and composites.
Suitable for electronics, general industrial assembly, repair, and maintenance.
Can be applied via 3M™ EPX™ applicator system, manual mixing, or automated dispensing.
Not intended for high-voltage automotive powertrain applications unless additional qualifications are met.
| Property | Base Resin | Accelerator | Notes |
|---|---|---|---|
| Color | Clear (varies: white → amber) | Clear | Does not affect performance |
| Mix Ratio by Weight (B:A) | 1.00 | 0.98 | — |
| Mix Ratio by Volume (B:A) | 1 | 1 | — |
| Density | 1.14 – 1.19 g/cm³ (9.5 – 9.9 lb/gal) | 1.10 – 1.15 g/cm³ (9.2 – 9.6 lb/gal) | — |
| Viscosity @ 27 °C | 8,000 – 15,000 cP | 9,000 – 16,000 cP | Brookfield RVF, #6 spindle, 20 rpm |
| Property | Value | Notes |
|---|---|---|
| Open Time | ~5 min | Max time before bond must be fixed |
| Worklife (10g mass) | 5 min | 23 °C |
| Set Time | 15 – 20 min | To reach ~0.3 MPa (50 psi) |
| Rate of Strength Build (Etched Al, ASTM D1002) | 20 min → 2.8 MPa (400 psi) | 0 MPa at 10 min |
| Cured Color | Clear | — |
| Compression Strength | 58 MPa (8400 psi) | ASTM D695 |
| Shore D Hardness | 82 | ASTM D2240 |
| Glass Transition Temperature (Tg) | 33 °C | DSC, second heat |
| CTE (–40 ~ 20 °C) | 60 × 10⁻⁶ m/m/°C | TMA |
| CTE (60 ~ 120 °C) | 209 × 10⁻⁶ m/m/°C | TMA |
| Volume Resistivity | 3.5 × 10¹² Ω·cm | ASTM D257 |
Electric Motor Reliability with Huntsman ARALDITE® Encapsulation Potting – Casting
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