"STOP CORROSION" Battery Corrosion Guard "STOP CORROSION!" 3 oz After cleaning the affected terminals, apply BCG with the brush to the top or side post connections to deny acid any penetration. Can be used to protrect the threads on battery hold down bolts, unsealed and non-rubberized uninsulated electrical terminals and connections. Battery Corrosion Guard is a 'Acid Neutralizer' Your battery will die before you you get any corrsion