Has anybody checked out 'Sikaflex'? I dont know what compound it is but it sticks like shit to a blanket to anything thats not too greasy and is VERY watertight, its commonly used in marine environments so vulnerability to salt, fuel etc shouldn't be an issue. I dont know how you would be using it as a potting compound but using it to seal the edges of an enclosure against the elements it should be ideal. Cheers, JJ -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads