Anyone had any luck lining a fuel tank?

[Laverdaroo]

It’s a cheap option, I just happened to have some brick acid in stock offa job so it was spot on for me. Any good acid will do it just depends on the concentration as to the effect one would expect, citric is used a bit on the net too.


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[McCabe-Thiele (Ted)]

White Vinegar did nothing on my tank when I tried - it's okay for cleaning Brass stuff.

[Matt_Harrington]

Oxalic acid is cheap and fairly effective (bought in salt form) and won't take your skin off. I had a chum who had a rusty chain (old) that he wanted to derust and it worked well on doing the job. Evaporust is expensive - £40ish for 5 litres but you can keep reusing it. Dry Acid Salt is another option - £10ish a kilo and that should make up 30+ litres. I use that in my plating setup for derusting/pickling.

[Toko_Jo]

Pretty sure a lot of lining kits use a phosphoric acid treatment prior to lining ...around 30% concentration.