There are differing opinions. I have use Seal All and Felpro Karropak Tan Fiber Sheet gasket material on a number of tanks. If the two mating
surfaces are rough or uneven, it may also be a good idea to lap then
so the gasket will be clamped evenly and seal.
Be cautious when removing fasteners and/or studs. Sometimes they
break off…lots of extra work.
Lapping tank mating surfaces (flanges) is pretty straight forward…coat
flange with felt marker (I use lay out dye) and rub on 220 grit wet or dry
until marker or dye are rubbed off and entire surface is then flat
and level.
Others have their methods which may be easier and better.
Louis
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This reply was modified 4 years, 6 months ago by
green-thumbs.