G12BP: Bars Products Radiator Stop Leak Powder.75 oz

Powder-form radiator stop leak that inhibits rust and scale formation, neutralizes pH imbalance, controls electrolysis, and lubricates and seals internal, external, and coolant-to-oil leaks. It is compatible with conventional green silicate-based antifreeze and extended-life red/orange or yellow OAT antifreeze; leaks generally stop within a few minutes.