FAB-1 is a highly advanced synthetic based formula for all oil-type fabric and foam air filter elements. FAB-1 is a superior oil for stopping the passage of dirt, fine dust, water and other harmful elements. FAB-1's super tacky polymer and co-polymer additives attract and hold onto virtually all fine dust particles. The water-proof base of FAB-1 resists moisture from passing through the filter. FAB-1 prevents oil "wash out" of the filter from carburetor fogging and offers the best protection for your engine, spark plugs, carburetor and air filter. Usage: Spray directly onto a new or clean filter element until a uniform color is achieved on all surfaces. Allow to dry for 15 minutes before installation. See instructions on container for more detailed application and cleaning directions. For all fabric and foam air filter elements. Fast penetration. Race-proven protection. Dustproof and waterproof.