MetalMonkey
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I've got quite a bit of (~2m lengths) box section to process for a project, its been stood outside a while so has gone a bit rusty and obviously came covered in mill scale.
Cleaning it up with an angle grinder gets old quickly, so I've made up an acid bath trough from some old guttering.
I've already done some experimenting on some small sections and decided to go with Acetic acid (strong vinegar) over Muriatic/Hydrochloric - it takes a bit longer but seems to work very well so far. I was quite surprised how effective it was!
The outside of the box section will be primed and painted after being treated.
My question is, do I need to worry about the inside of the box?
I've seen some people claiming that once the mill scale has been removed it corrodes very quickly, and therefore it shouldn't be removed from surfaces which you don't intend to paint or protect.
Anybody know if this will this be a problem?
The box isn't going to be sealed, but I could plug the ends up prior to dipping if it is likely to be an issue.
Anybody else using this method for preparing steel?
Cleaning it up with an angle grinder gets old quickly, so I've made up an acid bath trough from some old guttering.
I've already done some experimenting on some small sections and decided to go with Acetic acid (strong vinegar) over Muriatic/Hydrochloric - it takes a bit longer but seems to work very well so far. I was quite surprised how effective it was!
The outside of the box section will be primed and painted after being treated.
My question is, do I need to worry about the inside of the box?
I've seen some people claiming that once the mill scale has been removed it corrodes very quickly, and therefore it shouldn't be removed from surfaces which you don't intend to paint or protect.
Anybody know if this will this be a problem?
The box isn't going to be sealed, but I could plug the ends up prior to dipping if it is likely to be an issue.
Anybody else using this method for preparing steel?