Classic cars forum & vehicle restoration.
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Dipster
Joined: 06 Jan 2015
Posts: 408
Location: UK, France and Portugal - unless I am travelling....
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 Posted: Tue Apr 19, 2016 12:33 pm Post subject: |
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| baconsdozen wrote: | I have little faith in the phosphoric acid,sure it turns rust black but I've also seen it turn concrete black when spilled,presumably my workshop floor wont be going rusty any time soon.
I tried all sorts of different stuff when I supplied the fishing boats with tools in lowestoft,the best rust preventer was a horrible stinky black grease that they used on winches,it out performed any of the stuff you can buy in an auto shop.I left some metal bars coated with it on the roff of the shop where they got covered in salt spray.They were still perfect when I moved,they are probably still up there. |
When I had my garage built last year I invested (I like to think) in a couple of coats of a fancy 2 pack floor covering product. It is said to be resistant to most things. It makes keeping the place clean and tidy very easy. Spills wipe up and even sweeping up (after using a wire brush on a grinder to clear rust off tools for example!) is dead easy.
Whether it was worth the good few bob it cost is a matter of opinion..... |
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Mog
Joined: 30 Dec 2007
Posts: 663
Location: Sydney
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| Posted: Wed Apr 20, 2016 3:30 am Post subject: |
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| If you spill any acid on the concrete floor, clean up and wash quickly. The acid eats the cement - limestone . It then falls apart , as far as it has soaked in. |
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Mog
Joined: 30 Dec 2007
Posts: 663
Location: Sydney
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| Posted: Wed Apr 20, 2016 3:38 am Post subject: |
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| We used to use a very sticky black grease on the steel rolling mill. Hundreds of gallons of water, rushing around, would not wash it off. I do not remember it having a smell. |
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colwyn500
Joined: 21 Oct 2012
Posts: 1745
Location: Nairn, Scotland
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| Posted: Tue May 03, 2016 5:41 pm Post subject: |
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Just an update. Seriously rusted stub axles from a Fiat 500; one has been in a weak phosphoric acid sulution for a week and a half and has been wire-brushed by hand a few times just to help the process....guess which?
 FOR_3672 by Peter Thompson, on Flickr
I could have used a stronger solution and used a power tool first to help things along.
This has just been rinsed in water and will stay the way it is now, possibly acquiring a grey tint afer a while.
Even the rustiest spanners I have would be a much easier proposition than this chunk of iron oxide.  |
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