Arctic Alumina Thermal Adhesive is made with 99.8% pure micronized silver. It has superior thermal conductivity (greater than 7.5 W/mK). Note: Arctic Alumina Thermal Adhesive was formulated to conduct heat, not electricity. Even though it is specifically engineered for high electrical resistance, it should be kept away from electrical traces, pins, and leads. The cured adhesive is slightly capacitive and could potentially cause problems if it bridged two close-proximity electrical paths. Temperature Range is 40 degrees celcius to 150 degrees celcius (bond strength is slightly weakened at temperatures below 0 degrees celcius due to crystallization). Arctic Alumina Thermal Adhesive is a permanent adhesive. Any components you attach together with Arctic Alumina Thermal Adhesive will stay attached forever. Arctic Alumina Thermal Adhesive should be kept cold and away from UV light (sunlight and florescent lighting). We recommend refrigerating the unused material and allowing it to come to room temperature prior to use.