Best Gasket Sealers: Keep Fluids Inside Where They Belong
These top gasket sealers are helpful in automotive work
Gasgacinch is one of the go-to gasket sealers for engine builders and technicians. It applies with a high tack to adhere to any surface.
The brush-on application ensures that you can’t put too much of this stuff on. It works in all conditions in automotive applications. It also works well as a belt dressing. Maintains flexibility when cured.
This product is really hard to clean off your hands without harsh chemicals. Some buyers claim it isn’t as high quality as it used to be.
Great for use on differential housing covers, oil pans, valve covers, and any surfaces exposed to oil.
This is the best gasket sealer to use when the manufacturer calls for a liquid gasket vice paper, cork, or paper. Retains sealing qualities between -65 and 500 degrees Fahrenheit.
It is easy to use too much of this product. The excess product ends up where you don’t want it: on the inside of moving parts. It’s also hard to clean up.
This is another go-to sealant for professionals. It dries slowly to give you time to assemble your parts, and it adheres to most surfaces.
It’s great when used to adhere to a gasket (paper, rubber, or cork) to a horizontal or vertical surface for mounting. It’s resistant to gas, oil, and most acids. Maintains flexibility when cured, even down to -65 degrees and up to 400 degrees Fahrenheit.
Fumes are really strong, so this product must be used in a ventilated space. Not terribly good for threads on fuel lines. Bottles tend to leak over time with normal use.