The surfactant-free sealants ease washing impregnated parts and eliminate costly pretreatment of disposed waste rinse water. The sealants seal microscopic voids through a vacuum-application process, which eliminates microscopic voids that cause leaks under pressure. HPS has a lower viscosity resulting in less residue on parts and better sealing of smaller passages. Improved washing eliminates trapped material in blind holds and allows for immediate painting or plating.

Hernon Mfg., 121 Tech Dr., Sanford, FL 32771, (800) 527-0004,