Lock-Ease® graphited lock fluid protects against sticking, rust and freezing. AGS Lock-Ease® makes locks work easier year-round. Helps seal out moisture from working parts, providing maximum protection against freezing. Enters as a rapid penetrant, coating lock mechanism. The special "carrier" then evaporates, leaving a graphited long-wearing film. After evaporation, it will not run, even in hottest climates and won't harden at sub-zero temps.