Bar's Leaks 1111 Block Seal Head Gasket Fix 24 oz.
Bar's Leaks Block Seal Head Gasket Fix product is the easiest solution to stop head gasket coolant leaks. No draining of the cooling system is required. This formulation contains a combination of antifreeze compatible sodium silicate sealing liquid and various size gasket sealing particles which penetrate gaps & cracks and harden to permanently stop leaks. This seals because of the extreme heat inside the combustion chamber (5000°F) that works as a catalyst to permanently harden the material to make it stronger than the actual head gasket itself. Your vehicle is a good candidate for this product if it can idle for 20 minutes without overheating or having to add coolant. Use on ALL water cooled gasoline and diesel engines. Heavy duty formula works on aluminum and cast iron heads & blocks, along with sealing all other engine cooling system leaks better than a traditional stop leak. This includes repairing head gaskets, cylinder heads, intake gaskets, cracked blocks and freeze plugs. Use with ALL types of 50-50 mix antifreeze including conventional yellow, orange, pink, red, blue and green silicate based & non-silicate based (OAT/HOAT) coolant, and/or water. Bar's Leaks, America's most trusted stop leak brand since 1947.
- 1 Step
- Safely seals gasket leaks
- Quickly stops coolant leaks
- Easy to use
- Pour directly into radiator
- No draining required
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