Loctite Ablestik 2151 (Formerly known as Hysol TRA-Bond 2151) BiPax Tra-Bond is a two-part, strong, durable, thixotropic adhesive that improves great impact links at room temperature. This product provides improved overall heat transfer while it maintains electrical insulation and is typically used for staking transistors, diodes, circuits, and resistors. Loctite Ablestik 2151 adhesive offers a bond that is resistant to alkalis, salts, mild acids, lubricating oils, alcohol, and petroleum products. Ablestik 2151 also passes NASA outgassing standards and has an overall operating temperature of -70 to 115° C.