LP72s Inner Lining

[rjack321]

I've had 72s with liners sand blasted out at the hydro shop. I think they charged me $15. It was way worth it compared to burning up the motor on my tumbler. That said, one looked ok but once they blasted it out the steel underneath was pretty pitted. I ended up converting that 72 into a reservoir for my shop compressor.

As far as O2 goes, I would just get the liner out. The epoxy itself is not likely to burn (not anymore likely than the steel itself IMHO). But having a chip in there banging around is probably a legit risk/fear.

 

[kwinter]

I've had 72s with liners sand blasted out at the hydro shop. I think they charged me $15. It was way worth it compared to burning up the motor on my tumbler. That said, one looked ok but once they blasted it out the steel underneath was pretty pitted. I ended up converting that 72 into a reservoir for my shop compressor.

I distinctly remember asking my hydro guy many years ago about sandblasting to get paint off the outside of a tank and he said it was forbidden. If that's true, I can't imagine it being allowed on the inside either.


iPhone. iTypo. iApologize.

 

[rjack321]

I distinctly remember asking my hydro guy many years ago about sandblasting to get paint off the outside of a tank and he said it was forbidden. If that's true, I can't imagine it being allowed on the inside either.


iPhone. iTypo. iApologize.

I'm probably paraphrasing by calling it "sand blasting" I think they use soft enough media so that it doesn't remove any metal (which is the criteria for allow/not allowed). I didn't ask what media they use, possibly soda or beads. In any case I gave it to them and relied on their expertise, they are a regional "go to" hydro shop. They have a staff of 4 or 5 and probably do 250+ cylinders a day.

In a few cases it worked like a charm, in one it just made a mess and revealed a whole bunch of pits.