Bar's Leaks Cooling System Radiator Stop Leak 11 oz

Bar’s Leaks® Original Rhizex® Formula Cooling System Radiator Stop Leak seals internal, external, and coolant-to-oil leaks.  Works safely and effectively on plastic, aluminum and metal radiators, heater cores, blocks, heads, gaskets and freeze plugs.  Compatible with both conventional silicate-based and extended life (OAT/HOAT) antifreeze, all types and colors.  Can also be used in straight water.