I need to seal a mating surface that will come into contact with gas, but so far I'm not finding anything that will tolerate gasoline or alcohol.
It's a fuel tube, so it needs to be a paste that I can press or rub into position - otherwise I would just use neoprene sheet or the like.
Do you know if Permatex Ultra-Copper or Blue will withstand fuels? Permatex says "not recommended", but in this instance it doesn't have to withstand pressure - just fill a small void.
Gasoline and Ethanol are unfortunately simply too good of solvents for their own good sometimes.
