Name: Rislone Block Seal Head Gasket Fix
Brand: Rislone
SKU: 6000197484152
Price: 32.97 CAD
Availability: OutOfStock
Rating: 4.7 (890 reviews)

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Rislone Block Seal Head Gasket Fix

<ul><li>Gasket Leak Repair: Repairs head gaskets, cylinder heads, intake gaskets, cracked blocks, and freeze plugs.</li><li>No Draining Required: Stops head gasket coolant leaks without draining the cooling system.</li><li>Permanent Sealing Action: Contains sodium silicate sealing liquid and gasket sealing particles that harden due to combustion chamber heat (2760C) to permanently stop leaks.</li><li>Engine Compatibility: Usable on all water-cooled gasoline and diesel engines, including aluminum and cast iron heads &amp; blocks.</li><li>Coolant Compatibility: Works with all types of antifreeze, including conventional green or blue (Silicate-Based) and extended life red/orange or yellow (OAT/HOAT) coolant.</li></ul>

Easy To Use <ul><li>Repairs gasket leaks</li><li>Rislone Block Seal Head Gasket Fix</li><li>World’s Most Trusted Stop Leak Brand Since 1921</li><li>Brand Name: Rislone</li></ul>

Brand

Material

Color

Features

Has Written Warranty

Vehicle Fitment Type

Rislone 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 (2760°C) 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 antifreeze including conventional green or blue (Silicate-Based) and extended life red/orange or yellow (OAT/HOAT) coolant. World’s Most Trusted Stop Leak Brand Since 1921 Safely Seals Gasket And Other Severe Leaks Quickly and Permanently Stops Coolant Leaks One Step—No Draining Required—Easy To Use

Universal Product Code (UPC check)

Walmart Item #

Ease Of Use

Leak

Instructions

Gasket

Quality

Price

Engine

Value

Speed

Applying

Radiator

Coolant

Clear instructions make it easy to operate.

Forms a tight seal to stop leaks quickly.

Improves car performance by fixing head gasket and compression issues.

[This review was collected as part of a promotion.] My 78 GMC started burning coolant and the leak got bad enough that coolant was actually dripping into the exhaust when it was hot and not running. One bottle of Bars Leaks in the radiator, and by the end of the next day, no more burning coolant and the truck began running significantly better. Worth every penny.

Fixed my head gasket

Rislone

[This review was collected as part of a promotion.] My truck started using antifreeze & I could not find a leak anywhere; did some troubleshooting & determined I had a head gasket leak.  Added Bar's Leaks product to my radiator & have not had to add antifreeze in the past 2000 miles!  Bar's Leaks Block Seal Head Gasket Fix works!

This stuff works!

I bought a vehicle that had a head gasket leak and was overheating so I went out first thing and bought bars head gasket fix And poured into it first thing and so far so good it seems to have done what it's supposed to do. Although I haven't had to drive it very far yet it seems to be working. The real test will come when I have to take the vehicle further than just a town so we shall see.

Head Gasket Fix

I just recently bought a new vehicle that had a head gasket leak and the first thing I did was buy some bars, head gasket fixed and pour into it and so far so good. It seems to be doing what it's supposed to do although I haven't had to drive it very far just yet except just the town, but the real test will be when I have to drive it further so we shall see.

Bar's head gasket fix

[This review was collected as part of a promotion.] I bought this thinking it was wasted money. Boy was I wrong. 3 weeks so far since I added to my 2004 Buick Lesabre. Leak stopped with 30 minutes. Three weeks of daily driving a still no leak. I'm a believer.

Amazing product

I was honestly skeptical at first, but Block Seal Permanent Head Gasket Fix did exactly what it promised. After dealing with coolant loss, overheating, and white smoke, I used this product as directed and the results were impressive. The engine stabilized, overheating stopped, and coolant levels have stayed consistent ever since.

What really stands out is that this is not a temporary patch—it actually seals and holds. My vehicle has been running smoothly for weeks with no recurring issues. It saved me thousands of dollars in repair costs and extended the life of my engine.

Easy to use, clear instructions, and real results. If you're facing head gasket issues and want a reliable alternative to costly repairs, this product is absolutely worth it. I highly recommend Block Seal to anyone in a tough situation with their engine.

Exceeded Expectations – Truly Permanent Fix

[This review was collected as part of a promotion.] I had a heater core hose blow off and emptied my radiator fluid 
out, my coolant temperature soared to max. I was worried about my head casket 
condition, I saw your product on a store shelf and was relieved to find that it was especially for head gaskets. Thanks

Easy to use.

[This review was collected as part of a promotion.] My car was puffing white smoke from the back of the intake manifold. Smelled like something burning. I put this in and the smoke stopped coming out. Burning smell died down quickly and the heater actually blew hotter air than before. I hope this will give us at least a while longer to use the car before it has to be replaced.

Immediately stopped the smoking.

My daughter let her engine overheat and called me to come help. I got there and she still hadn't shut the engine off. As a result it caused a small crack in the block. I used this exactly as the directions said. I later refilled the radiator and after numerous drive it is still holding up!!!

It actually worked!

[This review was collected as part of a promotion.] My wife ran our little malibu hot about 2 years ago. Since then I've had oil in my coolant reservoir. Still drove fine but I worried every time I drove the thing. Used Bar's Leaks today and no longer see the oil! Highly recommend for cheap vehicles that a new head gasket is not worth the $ or effort.

Worked as promised

I bought last night and it didnt work at all it didnt seal

Not good

Rislone Block Seal Head Gasket Fix bottle with red screw cap and grey-black label, formulated for permanent automotive coolant leak and head gasket repair, easy one-step use with no draining required, contains 680 grams of sealant.