How long will K-Seal damage my engine?

Author: Juston Rodriguez  |  Last update: Saturday, November 15, 2025

Is K-Seal bad for your car? No. Scientifically tested, K‑Seal will not cause any harm to your car or its engine, nor will it damage the pump.

Can K-Seal damage an engine?

The engine would be seriously damaged and it wouldn't take long. K Seal contains sodium silicate (liquid glass), which is the same chemical used during Cash for Clunkers to irreversibly destroy engines by adding it to the oil.

How long do you run the engine with a K-Seal?

Once K-Seal has been added allow the vehicle to idle for about 20 – 30 minutes.

How long will an engine last with a blown head gasket?

When a gasket fails it can do serious damage to your car, so it is important to know the warning signs and what you need to do to get it fixed. Depending on how severe the leak or perforation is, a car usually does not last longer than a month with a blown head gasket.

What is the problem with K-Seal ULTIMATE?

A particular problem can occur when using K-Seal ULTIMATE with over pressurised cooling systems (head gasket failures) where the pressure is forcing coolant out of the overflow which can sometimes expel the K-Seal ULTIMATE mixture before it has even had a chance to get in to the cooling system.

K Seal Presentation by Mike Schlup Director of International Sales

What works better than K-Seal?

Advantage: Steel Seal will permanently seal cracks, withstand very high temperatures and high pressure. Can be used in water cooled engine in both petrol and diesel engines. Compatible with all types of antifreeze.

Is it worth keeping a car with a blown head gasket?

Here's a rule of thumb: Only replace the head gasket if the vehicle is worth at least double the cost of the repair. If it's not, you're likely better off getting a new (to you) car.

What happens if I keep driving with a blown head gasket?

A blown or cracked head gasket can cause one of two problems: It can allow coolant to escape from your engine. The result is a loss in coolant, which can lead to overheating of your engine if you drive it for any length of time.

Is an engine ruined if head gasket blown?

A blown head gasket is a serious issue, as mechanical problems in the vehicle may have caused the problem and will need fixing. In addition, the head gasket problems may have caused engine failure or serious damage to the engine components, and that situation will need addressing.

Should I flush my radiator after using K-Seal?

Bring your engine to its normal operating temperature by idling or gentle driving. K-Seal's unique formula will permanently fix any leaks in the system, and it is not necessary to remove the formula after use. However, you can flush the system if you wish and any leaks will remain plugged.

How big of a leak can K-Seal fix?

Testing by Brighton University showed K-Seal is capable of permanently sealing holes of up to 0.635mm in diameter, and cracks up to 0.254mm wide by 12.7mm long. As most holes and cracks are significantly smaller than this, K-Seal can provide a permanent, guaranteed fix for the majority of leaks.

Will K-Seal stop white smoke?

K-Seal can fix water loss and white smoke from your car exhaust. Thick white smoke pouring from the exhaust is usually due to a crack in the cylinder head, engine block or head gasket. This is caused by constant temperature fluctuations and a consistently overheating engine due to low coolant levels.

Will K-Seal damage a thermostat?

Will K‑Seal block anything in my cooling system? K‑Seal will not block the cooling system and is safe to use with all types of water cooled engine.

Is the K-Seal permanent?

K-Seal® Permanently seals leaks in the head, head gasket, block, radiator, heater matrix and water pump.

Can K-Seal fix a cracked block?

The technique used to repair the crack can also affect the total and you may have to weigh up the sense in repairing it when it may be more cost-effective to buy a new engine or even a new car. However, if the damage isn't too severe, K-Seal may be able to repair the cracked engine block without costing you thousands.

What does a car with a blown head gasket sound like?

When your head gasket fails, the pressure within the cylinders will not be at the correct level. You may hear a knocking sound emanating from the engine, or the sound of a misfire – depending on how the head gasket blew.

Does K-seal work for head gasket?

K-Seal can permanently repair and fix most head gasket failures, including: Coolant to cylinder leaks. Cylinder to coolant leaks. Blown head gaskets.

How to fix a head gasket without replacing it?

A blown head gasket fix can be as easy as dumping a bottle of sealant in your radiator, and you're good to go. The seal created from our product is as permanent as replacing the head gasket, but with less money and time. The reinforcing fibers we use in our formulations are what create the permanent bond.

Is it better to replace a head gasket or buy a new engine?

Is It Better to Repair a Head Gasket or Replace the Engine? If none of the other extending areas we mentioned are damaged, a head gasket replacement job is the better choice financially. While it cost upward of $2,000, buying a whole new engine is much more expensive.

What happens if you don't fix a blown head gasket?

If engine oil leaks past a faulty head gasket, blue smoke may come out of the exhaust pipe, because it's burnt during the combustion process. This can be very bad news for the catalytic converter. If this is left to happen for an extended period, the catalytic converter can be 'poisoned' and require replacement.

How to start an engine after head gasket repair?

Pull the plugs and disconnect the fuse for teh fuel pump. Turn the engine over with the starter until the oil pressure light goes off or at least about 30 seconds. put the plugs and fuse back in and start the car, let it idle for a few minutes to get to temp. Check for leaks, let the car warm up.

Will K-Seal clog my engine?

Also as part of the testing, K-Seal sealed holes up to 0.025 inch and cracks up to 0.01 inch. This guarantees that K-Seal will not block even the narrowest passageways in your cooling system, making it safe for your engine.

How to flush out a K-Seal?

Step-by-Step Guide
  1. Remove the lower radiator hose and catch the draining coolant in a bucket.
  2. Remove the top radiator hose and flush the system out with a normal hose.
  3. Continue until the water runs clear out of the bottom of the engine.
  4. Refill with coolant and reattach the radiator hoses.

Should I use a whole bottle of K-Seal?

The entire bottle should be used. If you are applying to a hot engine be careful as the cooling system will be under pressure. Do not pour K-Seal directly onto the radiator core. If you are concerned coolant flow is obstructed we recommend flushing the cooling system prior to using any K-Seal products.

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