[AT] Phosporic acid and cleaning a gas tank

[CBear81438 at aol.com]

There is an epoxy type coating for gas tanks that is sold by the antique  car 
restorers...  POR-15 had a product that worked, it formed a liner in  the 
inside of the tank.   You have cleaned the inside of the tank so  well that it is 
going to rust.  Fuel tanks are made from a metal called  galvaneal and it has 
a coating ( a few thousandths ) that keeps rust from  forming.  If  
youcleaned it with muriatic acid, the coating is gone,  the phosphoric acid only 
cleaned it further.  I would recommend using a  baking soda solution or ammonia to 
neutralize the acid, then when it is  completely dry use a POR-15 gas tank 
sealer or another type....
 
Cecil in OKla