CRC SP-400 is a long term, dry film, corrosion inhibitor. Heavy petroleum-based film provides a firm waxy coating that protects metal parts from corrosion up to 1 year outdoors and 2 years indoors. Applied wet to thoroughly cover all exposed metal surfaces. Dries within a few hours to provide a flexible film that resists moisture, air, dirt, and scratches. Easily removed with CRC heavy-duty Degreaser or heavy-duty Degreaser II . Recommended for long term storage of metal parts and protecting base metals that are not painted or primed. Recommended replacement for Model No. LPS 3, Premier Rust Inhibitor.