This exceptional cylinder lock spray contains no silicone, PTFE, acid or resin, and is non-gumming. Ceramic particles in the spray ensure that the lock mechanism is optimally lubricated and operates smoothly again. Spray application ensures penetration into even the tightest spaces. No more squeaking and creaking. The spray displaces moisture, preventing rust and also icing up in winter. Keeps locks functioning properly and extends their life. Ballistol Cylinder Lock Spray protects against corrosion and dissolves any existing rust.