This product makes the assembly and disassembly of hvacr drive components and fasteners easy, even when the components are subject to salt spray, humidity, chemicals or dust. "BlackJack" is an extreme duty compound containing submicron molybdenum disulfide blended with synthetic and neutral petroleum oil. It stops rust and oxidation from occurring and never hardens, maintaining its texture over a wide range of temperatures.

Refrigeration Technologies, Fullerton, Calif.; 800/869-1407; www.refrig.com.

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