Quote:
Originally Posted by J-May
If you find a guy brave enough or possibly dumb enough to weld on a gas tank, I would watch from a distance.  |
Please seek education. I used to safely weld fuel tanks on a regular basis. We dry the tanks outs with absorbing mats. Cut down for moto tanks. Run compressed air in the tank for 30 minutes through the fuel line or petcock. This dries out any remaining fuel and blows the fuel vapors out the filler hole. Then we purge the tank with carbon dioxide or argon gas to be doubly sure that all the fuel vapors. Then weld. Fuel vapors explosive. The liquid fuel burns. Eliminate these two variables and all is good for welding. Fuel doesn't absorb into metal like oils.