A: There are a few very good products available that are labeled as “head gasket sealer.” My favorite is the Blue Devil brand, which is available at automotive parts stores. ... The sodium silicate costs around half the price of the automotive products.

Why is my car overheating after I put blue devil in?

You might have clogged heater core. The whole system has to clean otherwise you will have overheat in stop n go + no heat when you need it.

Is Blue Devil bad?

Is Blue Devil Bad for Your Engine? The answer is a resounding no. And if you are wondering about the safety of using other brands of rear main seal conditioners and stop-leak products like Bar's Leak or Justice Brothers, don't worry. They almost all use the same active ingredient.

Is Blue Devil head gasket sealer safe?

BlueDevil Head Gasket Sealer (#38386) will repair and seal leaks in blown head gaskets, warped or cracked heads, heater cores, and freeze plugs. BlueDevil contains no solid or particulate matter, and will not clog or harm your engine. It bonds to metal, aluminum, cast, alloy, or plastic, and it's safe and easy to use.

Can you use Blue Devil twice?

Yes. You can use the blue devil head gasket sealer more than once. This product does not contain petroleum distillates, so you might use it more than once if a leak occurs after the last time you used it.

blue devil head gasket sealant repairs a blown head gasket

34 related questions found

How long does it take Blue Devil to work?

For a timing cover leak, we recommend using the BlueDevil Oil Stop Leak. You should expect to see results after about 150-250 km of driving. 10. Which product is recommended for camshaft oil seal leaks?

How much sodium silicate should I use in the radiator?

Fill the radiator halfway with water -- use 1/2 cup if the vehicle runs hot while driving more than an hour. If vehicle runs hot quickly, use one cup. Remember to run the vehicle for about an hour afterwards -- if it doesn't get hot, you're good. If it runs hot after you use the sodium silicate, repeat the process.

Is Blue Devil a permanent fix?

Blue Devil did the job as advertised and I'm a happy customer so far. This is supposed to be a permanent repair so real proof will be how it holds up over time, including the upcoming winter.

Can you put Blue Devil in coolant reservoir?

Answer: Correct answer according to directions on bottle is through the top radiator hose. DO NOT pour into the expansion reservoir.

Will head gasket sealer stop overheating?

Steel Seal Blown Head Gasket Fix Repair Sealer

This product is ideal for six-cylinder engines and will help users prevent excess antifreeze consumption and engine overheating.

What is the best rear main seal additive?

Best Oil Stop Leak Additives: Protect Your Fuel System

• Best Overall. Lucas Oil 10278 Engine Oil Stop Leak. Check Latest Price.
• Best Value. ATP AT-205 Re-Seal Stops Leaks. Check Latest Price.
• Honorable Mention. Liqui Moly Oil Leak Stop. ...
• Honorable Mention. Bar's Leaks Engine Repair. ...
• Honorable Mention. BlueDevil Oil Stop Leak.

Is Stop leak bad for your engine?

In the end, off-brand products could possibly damage your engine – we hear stories about it on a weekly basis. When you carefully follow the instructions for our engine, radiator or other stop leak products, there is no risk of damage.

Can I use Blue Devil Without removing thermostat?

4. My thermostat is hard to reach. Do I really have to remove it? No, BlueDevil is an easy Pour-N-Go product.

How Long Will Blue Devil Head Gasket Sealant last?

How long BlueDevil Head Gasket Sealer last? It depends on car to car. In general, it can last up to 6 months, but there're some cases in which it lasts up to one year and two years.

Can you replace a head gasket without machining?

You'd hate to have to redo something like head gaskets because of something so like that. Again its all up to you. You don't have to machine them, but its not a bad idea.

What does liquid glass do to an engine?

Often called liquid glass, sodium-silicate solution has been better known for being used to save motors rather than killing them: It is used to stop leaks in the gaskets that seal cylinder heads to engine blocks.

How long does it take for sodium silicate to dry?

Sodium Silicate is a water based liquid and drying me is a funcon of how quickly the water can be evaporated. A thin layer exposed to air will dry in about 30 minutes, however most applicaons will require at least 24 hours to dry due to limited air flow.

What does Blue Devil Oil Stop Leak do?

BlueDevil Oil Stop Leak seals engine oil leaks permanently. It is non-clogging and will not harm your engine. BlueDevil is safe and easy to use and is compatible in gasoline or diesel engines. Our stop leak additive solution is guaranteed to keep your leak sealed even after miles of driving or your money back.

What is the best head gasket stop leak?

Best Head Gasket Sealer

• Blue Devil Head Gasket Sealer.
• Steel Seal Blown Head Gasket Sealer.
• Bar's Leak HG-1 HEAD SEAL Blown Head Gasket Repair.
• ATP AT-205 Re-Seal Stops Leaks.
• K-Seal Multi-Purpose Permanent Coolant Leak Repair.
• K&W 401232 Permanent Head Gasket & Block Repair.

What is the best head gasket repair sealant?

The Steel Seal Blown Head Gasket Fix Repair Sealer is our top pick for the best overall permanent head gasket sealer. It works well on older and new vehicles and is suitable for cars, vans, SUVs, and trucks. If your budget is a little tight and you still need a professional-grade sealer, check out the K-Seal ST5516 HD.