#3 Use of Sealers
While sealants, adhesives, and RTV are sometimes recommended with any gasket set, they can often cause, rather than solve, problems.
In the past, it was not uncommon to apply the sealer to a gasket before installing it. Today, however, the rule of thumb for most modern, high-quality gaskets is "Install Clean & Dry." Proper installation is the key to long service life, and installation practices need to keep pace with each new gasket technology. Fel-Pro® designs gaskets specifically for the repair environment, with sophisticated materials and coatings designed to seal less-than-ideal surfaces. Applying RTV or other sealers to the gasket surface could reduce its ability to form a reliable seal.