[TR] Gas Proof Material

[terryrs at comcast.net]

Last summer I switched to Sunpro gauges, building an adapter for the fuel tank sending unit out of two pieces of plexiglass with Permatex and paper gasket seals sandwiched in between.  Worked great.

Until filling up for the first time this season when I smelled gas.  Investigation reveals the plexiglass has degraded and broken.

Question one:  does gas break down plexiglass, or might it have been the Permatex?  I don't think I tightened the screws too tight.

Question two:  I don't really have the tools to easily fabricate two metal disks to create an adapter.  Is there a material that's easy to work with, like Plexiglass, that can withstand the chemicals?  

I do love these new guages, though.

Terry Smith, '59 TR3A
New Hampshire