3M™ Scotchcast™ Electrical Resin 260 is a 1 part, powder resin used for coating flat surfaces, corners, and high points. This general-purpose epoxy-based, powder resin has a very low viscosity property, which makes it easy to infuse on any surface. The resin melts when it’s heated, it flows to a controlled extent and then cures, bonding to the surface in a uniform, thick coating.
3M™ Scotchcast™ Electrical Resin 260 has a low gel point rating to ensure a quick curing process. The resin is made from a fusion blend process which offers the components necessary to provide a complete cure and meet required performance properties. It provides a continuous, tough moisture and chemical resistant dielectric coating to a variety of substrates. It is ideal for applications that need excellent thermal shock and mechanical shock resistance. Its high dielectric strength offers excellent electrical insulating property to the resin, thus making it an ideal insulator for creating a barrier between 2 conductors. UL Listed and RoHS 2011/65/EU Compliant.
FEATURES
- Has 12 to 16-second gel time at 380 °F (193 °C)
- Useful for moisture-proofing and insulating armatures, stators, bus bars and toroid cores
- Withstands temperatures of 356 °F (180 °C)
- Compatible with electrostatic spray, fluid bed dip and venturi spray
- Heat-, chemical- and moisture-resistant
- UL Listed, EIS Approved and RoHS 2011/65/EU Compliant
Typical Properties
| Property | Value |
| Color | Green |
| Specific Gravity (cured) | 1.43 |
| Dielectric Strength3 12 to 15 mil (305µ-381µ) coating | 1000 v/mil |
| Thermal Shock – 10 cycles – 75° C (167° F) to 155° C (311° F) 12-15 mil (305µ-381µ) coating 1/8” sandblasted steel panel | Passes |
| Impact Resistance 12-15 mil coating 1/8” sandblasted steel panel Gardner 5/8 inch Radius Impact Tester |
100 inch-lbs |
| Cut-Through Resistance – 1 lb. wt.; 18 AWG wire | 215° C (410° F) |
| Abrasion Resistance | .08 grams loss |
| Edge Coverage – 12 to 15 mil (305µ-381µ) coating on flat | 35 – 45% |
| Gel Time @ 193° C (380° F) hot plate | 12-16 seconds (260, 260 CG) 6-10 seconds (260 8 G) |