Lock Lubricant Micronized polytetrafluoroethylene (PTFE) Powder A dry white powder lubricant that will not “cake-up” as graphite does. A superior friction-fighting agent At SouthOrd, we recommend LAB Lube lock lubricant when you want a clean, dependable dry lock lubricant that reduces friction without leaving an oily residue. The PTFE lock lubricant formula is suitable for routine maintenance on pin tumbler locks and other common lock mechanisms. Because it is a lock cylinder lubricant that applies as a fine powder, it helps maintain smooth key movement while minimizing buildup over time. If you are looking for lock lubricant powder that stays clean and supports consistent lock performance, LAB Lube lock lubricant is an excellent choice.