Polytron Penetrating Lubricant (PL) 7oz (200ml) Spray Can - Military Industrial Grade For use on automotive, home, machine shops, industrial, marine, and other applicable places. Great for preventing corrosion in marine applicaiton. DIRECTION: Shake the Polytron PL 7oz can and apply directly onto the surface to be protected. May be used to mix with machine cutting oil for longer tool life. Polytron Penetrating Lubricant is made of premium quality fast acting penetrating oil added with scientifically engineered, wear-eliminating formula that is 20 times longer-lasting and more effective than the popular competing brand in most demanding conditions Fast penetration: Reduces power/fuel consumption, noise, and temperature by penetrating deep into applied surfaces, rust and displaces moisture; cleans and retards electrical corrosion; quickly loosens seized equipment Reduces metal-to-metal friction and eliminates wear up to 95% When used with machining lube, Polytron PL can provide up to 300-400% tool wear reduction, much smoother and cleaner surface finish, prevents welding, and may speed up machining process