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Scientifically tested - k-seal is the only product to have been successfully tested by the equipment at Brighton University and classes as meeting the demands of ASTM D3147.





1. STEEL SEAL
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STEEL SEAL Blown Head Gasket Fix Repair Sealer for 4 Cylinder Engines
#adSTEEL SEAL #ad - Use for any 4 cylinder, liquid-cooled engines. Backed with a 100% money-back guarantee. Diy pour in head gasket repair. Used by thousands of repair shops nationwide. Permanently seals head gasket leaks.More information #ad
Brand | STEEL SEAL #ad |
Manufacturer | Steel Seal #ad |
Part Number | 4CYL002 |
More information #ad
2. STEEL SEAL
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Steel Seal Blown Head Gasket Fix Repair Sealer, 6 Cylinder
#adSTEEL SEAL #ad - Do-it-yourself Pour in Head Gasket Fix. Backed with a 100% Money-Back Guarantee. Permanently seals a crack in the head gasket. Used by thousands of repair shops nationwide. Used for 6 Cylinder Engines.More information #ad
Brand | STEEL SEAL #ad |
Manufacturer | Steel Seal #ad |
Part Number | 6CYL001 |
More information #ad
3. STEEL SEAL
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8 Cylinder, Steel Seal Blown Head Gasket Fix Repair Sealer
#adSTEEL SEAL #ad - Backed with a 100% Money-Back Guarantee. Do-it-yourself Pour in Head Gasket Fix. Used by thousands of repair shops nationwide. Used for 8 Cylinder Engines. Permanently seals a crack in the head gasket.More information #ad
Brand | STEEL SEAL #ad |
Manufacturer | Steel Seal #ad |
Part Number | 8CYL001 |
More information #ad
4. Bar's Leaks
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Bar's Leak HG-1 HEAD SEAL Blown Head Gasket Repair
#adBar's Leaks #ad - Seals cracked Cylinder Heads And Blocks. Repairs blown Head And Intake Gasket Leaks. Stops heater Core And Radiator Leaks. Fixes leaking Freeze And Core Plugs.More information #ad
Brand | Bar's Leaks #ad |
Manufacturer | Bar's Leaks #ad |
Height | 3.22 Inches |
Length | 9.78 Inches |
Weight | 2.65 Pounds |
Width | 3.22 Inches |
Part Number | HG-1 |
Model | HG-1 |
Warranty | Manufacturer Warranty |
More information #ad
5. KALIMEX LTD
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K-Seal ST3501 Pour and Go Permanent Head Gasket and Block Repair
#adKALIMEX LTD #ad - If product did not seal head gasket leak, the system might be Over-pressurized, which causes back pressure and doesn't allow the product to reach the problem area, on this page below under Technical Specification is a PDF Guide with instructions to follow to complete the repair successfully.Scientifically tested - k-seal is the only product to have been successfully tested by the equipment at Brighton University and classes as meeting the demands of ASTM D3147.
More information #ad
A permanent repair, guaranteed for the lifetime of the engine. Just pour & go – no need for expensive head Gasket Repairs - The Safe and Easy Way to Fix a Coolant Leak. Fixes blown head gaskets, cracked heads and blocks.Brand | KALIMEX LTD #ad |
Manufacturer | Solv-TecA #ad |
Height | 8 Inches |
Length | 2.5 Inches |
Weight | 1 Pounds |
Width | 2.5 Inches |
Part Number | KSLST3501 |
Model | KSLST3501 |
Warranty | Lifetime warranty does not cover abuse |
More information #ad
6. Bar's Leaks
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Bar's Leaks 1111 Block Seal Permanent Head Gasket Fix 24 oz. , Brown
#adBar's Leaks #ad - Stops block leaks. Seals cracked cylinder heads and blocks. 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. Repairs blown head gaskets.More information #ad
Brand | Bar's Leaks #ad |
Manufacturer | Bar's Leaks #ad |
Height | 2.5 Inches |
Length | 9.5 Inches |
Weight | 1.5 Pounds |
Width | 2.6 Inches |
Part Number | 1111 |
Model | 1111 |
Warranty | 1 year manufacturer |
More information #ad
7. Bar's Leaks
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Bar's Leaks 1100 Head Gasket Repair, 20 oz.
#adBar's Leaks #ad - Head gasket sealant is not compatible with antifreeze and must only be added to the cooling system after ALL ANTIFREEZE has been flushed and removed. Dual action 2 part formula — liquid ceramic: liquid penetrates large and small leaks to form a seal actually harder than the original head gasket — REINFORCED FIBERS: Fiber additives lock together with liquid to increase strength and promote a permanent seal.More information #ad
Stops block leaks. Seals cracked cylinder heads and blocks. Included components: Unit, Instruction Guide. Repairs blown head gaskets.Brand | Bar's Leaks #ad |
Manufacturer | Bar's Leaks #ad |
Height | 8.3 Inches |
Length | 1.8 Inches |
Weight | 1.41 Pounds |
Width | 3.4 Inches |
Part Number | 1100 |
Model | 1100 |
Warranty | 1 year manufacturer |
More information #ad
8. ATP Automotive
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8 Ounce Bottle, ATP AT-205 Re-Seal Stops Leaks
#adATP Automotive #ad - Compatible with conventional and synthetic oils, gear oil, ATF, power steering fluids and hydraulic oil. Does not contain petroleum distillates, will not over-swell or breakdown seals.More information #ad
Rejuivinates all rubber seals & gaskets in engines, power steering, transmissions, differentials and hydraulic systems. Professional strength fast acting resealer, stops leaks fast. 8oz bottle will treat a 6 quart capacity, adjust accordingly.Brand | ATP Automotive #ad |
Manufacturer | ATP #ad |
Height | 4 Inches |
Length | 7 Inches |
Weight | 0.11 Pounds |
Width | 4.5 Inches |
Part Number | AT-205 |
Model | AT-205 |
Warranty | Money Back Guarantee |
More information #ad
9. K-Seal
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Blue, K-Seal ST5501 Multi Purpose One Step Permanent Coolant Leak Repair
#adK-Seal #ad - No draining Or Flushing. Permanent coolant leak Repair - Just Shake, Pour And Go. Fixes cracks and leaks in radiator, freeze Plugs, Cylinder Heads, head gasket, Heater Core, Water Pump Casing And Engine Blocks. Mixes with All Antifreeze.More information #ad
Brand | K-Seal #ad |
Manufacturer | K-Seal #ad |
Height | 6 Inches |
Length | 7.87 Inches |
Weight | 0.6 Pounds |
Width | 2 Inches |
Part Number | ST5501 |
Model | ST5501 |
Warranty | When K-Seal makes a repair we guarantee it will be permanent |
More information #ad
10. K-Seal
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K-Seal ST5516 HD Multi Purpose One Step Permanent Coolant Leak Repair
#adK-Seal #ad - Fixes cracks and leaks in radiator, freeze plugs, head gasket, heater core, cylinder heads, water pump casing and engine blocks. Permanent coolant leak repair - Just shake, pour and go. If product did not seal head gasket leak, which causes back pressure and doesn't allow the product to reach the problem area, the system might be Over-pressurized, on this page below under Technical Specification is a PDF Guide with instructions to follow to complete the repair successfully.More information #ad
Mixes with all antifreeze. No draining or flushing.Brand | K-Seal #ad |
Manufacturer | K-Seal #ad |
Height | 1.9 Inches |
Length | 5.9 Inches |
Weight | 1 Pounds |
Width | 4.1 Inches |
Part Number | ST5516 |
Model | ST5516 |
Warranty | When K-Seal makes a repair we guarantee it will be permanent |
More information #ad