"Boyd Laconia LLC's Thermal Hardener Epoxy (part 4953G) is a high-performance adhesive designed to provide exceptional thermal conductivity, with a thermal conductivity rating of 1.34W/m-K. The 4 lb package ensures ample quantity for various applications, while its 12-month shelf life guarantees its long-lasting effectiveness. This epoxy is the perfect solution for bonding heat sinks, power modules, and other components requiring efficient thermal transfer. Trust Boyd Laconia LLC's 4953G to provide reliable and durable thermal management in your projects."