Bar's Products Inc.

Liquid Copper Block Seal

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

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