HEAT SEAL STICK 3/8 OZ/CD Heat-Seal Stik 3/8 Oz, Carded: Fast repairs completed in 90 seconds One part epoxy, no mixing or measuring needed Stick melts, seals and cures in one operation Use on aluminum, copper and other metals, glass and ceramics Ideal for use on high and low side of refrigeration systems Sealing temperature: up to 350° F (177° C ) Pressures: to 600 PSI (41 Bar) Made in USA