The tank sealant used on most "wet wing" metal planes is called Pro

Seal and

it adhears to fiberglass as well.  This stuff is resistant to auto

fuel with

alcohol and works great but is not "sloshable".   All of the

sloshing

compounds (both aircraft and automotive) I've tried have failed the

auto

fuel test.  The small amount that I ran down the seams in my tanks

(thank

heavens I didn't actually slosh it) peeled off after about a year

and lodged

in the gascolator screen.  BTW, this is one reason I like a coarse

filter

that can be inspected in the fuel system before the final fuel

filter.  You

can see trouble coming before it becomes an in-flight emergency.

Tracy Crook
tcrook@rotaryaviation.com
www.rotaryaviation.com

Did the Proseal peeled off after a year?  Or
the other products?

Thanks,
AI Nut

The ProSeal was fine, only the sloshing compound came off.  Wish I could
remember the brand names of the sloshing stuff that failed but after being
burned twice I vowed never to use *any* sloshing compound again.   As usual,
there are probably others who have 'sloshed ' their tanks successfully and
your mileage may vary.

I kind of got off the thread of fiberglass builders here.  Paul Conner's
suggestions sound like good ones for those guys.

Tracy Crook
tcrook@rotaryaviation.com
www.rotaryaviation.com

 
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