Fuel and Brake Fitting Thread Sealant

I wonder if someone has discovered a fuel fitting thread seal that is good with ethanol/gasoline fuel. Someone used the "TiteSeal" product from Aircraft Spruce, it apparently disolves from the ethanol. I have been using Permatex "Thread Sealant" and am worried that it too may not be OK with ethanol based fuels and brake fluid. I can find none that explicitly says that it will withstand ethanol or brake fluid.

Don,

Car guys have similar concerns, found this on one of the forums.

http://www.gasoila.com/products/items/esealthreadsealantsoftsetwithptfe.html

I used this all throughout my brake/fuel system with no problems but I only ran 100LL.

http://www.aircraftspruce.com/catalog/cspages/ezturnlube.php