The reformulated Liquid Copper Block Seal Intake and Radiator Stop Leak permanently seals larger leaks in gaskets, radiators, heater cores, intake manifolds, blocks, heads and freeze plugs.
- Uses an advanced antifreeze-compatible sodium silicate liquid glass formula that works with all types and brands of antifreeze
- Can be used in any water-cooled vehicle
- One 18-oz. bottle treats cooling systems up to 6 gal.
- Will not harm the cooling system when properly installed, or clog the system or heater core