What is the Best Cooling System Sealer?

Unlike a typical radiator stop leak product, a cooling system sealer works to fully coat and seal your cooling system all over. This kind of technology has been around since the 50’s or maybe even longer.

One such product like this that is still readily available is Irontite Ceramic Motor Seal. Sometimes referred to as “liquid glass” this is used to coat the walls of the cooling system.

Filling in cracks and metal porosity making a “smooth as glass” coating that not only seals but also promote better coolant flow. Better flow means better cooling. Sometimes as much as 15% better cooling ability.

Designed for the Engine Rebuilder

Ceramic Motor Seal was originally designed with the engine rebuilding in mind. After rebuilding an engine there could be areas where the cooling system may weep around replacement sleeves or bearings.

Also, there could be minor cracks from the fatigue of the casting. Minor in that they don’t cause a structural problem, but could allow for coolant seepage and added turbulence to the flow of coolant.

Made for the Professionals

Marketed to the Engine Rebuilder Professional along with an external circulating pump that both pumped and heated the Ceramic Motor Seal solution, Irontite had solved a troubling problem that rebuilders had been struggling with.

Now, after a rebuild the block and head could be pressure tested and if they failed that test the rebuilder could circulate heated Ceramic Motor Seal and get the pressure test to pass with flying colors.

This proved to be a very successful solution to a nagging problem.

It can Repair a Coolant Leak

Many years later it was discovered that Ceramic Motor Seal could be used to repair a coolant leak in an engine that was in chassis.

Just by removing the engine anti-freeze and adding the Ceramic Motor Seal solution and running the vehicle for several hours the same benefits could be given to that in-chassis motor.

Sealing of a leak, but also the added cooling benefits of a fully coated cooling system.

How does it work?

Unlike a typical radiator stop leak product Ceramic Motor Seal must be used with caution or you could cause very real and expensive damage to a vehicle.

First of all, Ceramic Motor Seal is not compatible with Anti-Freeze. If you pour it into an anti-freeze mixture it will turn to goo and eventually into stone.

And if you spill any on painted or chrome surfaces it will damage them if it dries.

When you circulate the Ceramic Motor Seal solution with heat it very slowly accumulates at an almost microscopic level to all the surfaces it contacts.

Given enough time it forms a smooth surface over everything. You then drain it from the system and rinse with water to get all non-accumulated solution out of the system.

Then you leave it open to the air so that it can cure. 24 to 48 hours of air dry cure time is recommended.

Now the process is complete and you can add your normal anti-freeze mixture into the system.

We further recommend adding All Weather Seal as a preventive against any future leaks.

Also, before you start the process it’s a good idea to flush your system with our Irontite Thoro-Flush product.

Just so you have good clean surfaces for the Ceramic Motor Seal to bond to.