provides added protection from water infiltration
Tape should never be used. A sealant spray made for the particular medium should be used.
Yes, they should. Sealing the surface on a regular basis prevents water from seeping into the material and causing damage when it freezes. It also replaces some of the oils that evaporate, helping keep the material flexible and less likely to crack.
Sure. 100% silicone can be used. The sealant is not necessary as the gasket does the sealing anyway. the sealant does help hold the gasket in place for easier installation.
The sealing material should extend least 2 inches past the edge of the wound.
The sealing material should extend least 2 inches past the edge of the wound.
The sealing material should extend least 2 inches past the edge of the wound.
tape
four
A sealing ring is a ring that is used to prevent leaks in pipes. A gasket serves the same purpose as a sealing ring, but can also keep in gas.
Something airtight
The purpose is to assure a perfect sealing.
Some head gaskets come with a coat of "Copper coat" sealant already on it. You can use copper coat on a head gasket safely. I prefer "Indian Head Shellac" myself. Just be sure to completely clean the heads first, and apply the sealant liberally. If you use too much, you can damage your engine by the sealant leaking into the engine itself.