Hi Chris,

I'm going through a similar project adding an inspection hatch, capacitance gage, and replacing broken float switches in my header tank.

The stuff you want is called "Pro-Seal" and can be found on Aircraft Spruce's site here.

It is a messy b#@^h to work with - wear latex gloves and have a small supply of MEK (Methyl Ethyl Ketone - a solvent available at Home Depot) on hand to get it off or you'll be wearing it for a while.

According to my mechanic, you don't need any additional gasket material.

Best regards,

Bill Reister

cskelt@earthlink.net wrote:

Folks,
I put an inspection hatch into the inner wing rib to allow access into the
tank.  There's a large phenolic ring embedded in the inner side of the rib.
I'm now looking for some gasket material to replace the 40+ year old
rubberized cork material I used for the trial assembly while building.  The
photos show the hole with and without the aluminum cover plate.  I'm
requesting any suggestions for gasket material and any additional sealant
needed.   Thanks in advance. 

Regards, Chris.
  

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