3M Thermally Conductive Silicone Interface Pad 5515S-20 is a conformable silicone elastomer pad. Designed to provide heat transfer path between heat generating components and heat sinks, heat spreaders and other cooling devices.3M Thermally Conductive Silicone Interface Pads 5515S-20 Soft Pad also includes a polyimide film layer for higher dielectric strength, abrasion resistance and improved handling. Standard Lead Time: 49 Calendar Days