Tyre Foam Cleaner: Function By applying the Tyre Foam Cleaner onto the tyres surface can effectively dissolve dirt and grime, restore luster and leave satin finish ,protect the surface from cracking and discolouration. Application Tyre, bumper and other rubber parts. Usage Shake evenly.Spray onto the wheels sidewall from about 20 cm away .No matter the tyre is dry or wet ,without wiping or washing.For the best result, apply after removing excessive dirts by water washing. Safe to all kinds vehicles tyres. Caution Do not spray on brake rotors,drums, floor or bicycle tyre.store under 50C . Dont pierce or burn the can. Keep away from children.