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Technical & Reference Section => Tech and Restoration => Topic started by: Clean on April 18, 2011, 09:07 PM

Title: First foray into derusting with Oxalic Acid
Post by: Clean on April 18, 2011, 09:07 PM
OK, peeps.... sharing yesterday's experience with some OA and very hard to reach rust (inside tubes, inside dropout welds etc.)

Mixed it rich (250grams to 4 litres water) and soaked for 30 minutes.

Water turned yellow (think morning after urine) and rust turned whiteish before disappearing.

Thorough rinse in cold clean water for a good while then into the sun to dry out for an hour or so.

I did end up with some tide marks on the chrome / nickel and the odd strange blemishes which I suspect relate to the quality of the rework the Frameset had before I got it. Some Peek and elbow grease soon put paid to those, though.

Now to treat the internals with ACF-50 and we are ready to build.

Sorry there are no pics; due to the location of all of the rust the "Before"s didn't turn out very well.

Still, I can confirm it works, and that any blemishes can be worked out with Peek. I probably would mix it leaner next time around, though, as the fumes were a bit heady!
Title: Re: First foray into derusting with Oxalic Acid
Post by: wildon on April 18, 2011, 09:14 PM
it's just a big anti-climax without pics  :P
Title: Re: First foray into derusting with Oxalic Acid
Post by: Jaymz on April 18, 2011, 09:18 PM
have you done this to the dyno fella?
Title: Re: First foray into derusting with Oxalic Acid
Post by: Clean on April 18, 2011, 09:23 PM
have you done this to the dyno fella?

No, mate... that went straight to a mate at work for his kid.

I am working on a 1980 DB Pro Large!  :smitten:

it's just a big anti-climax without pics  :P

I know, that's why I said sorry!!! TTIUWP  :'(
Title: Re: First foray into derusting with Oxalic Acid
Post by: Jaymz on April 18, 2011, 09:28 PM
sounds tasty, we definately need a more visual story of the build though fella otherwise i will chase you round the forum posting this

(http://www.radbmx.co.uk/archive/albums/oo248/muddytubbie/this20thread20is20useless20without2.jpg)
Title: Re: First foray into derusting with Oxalic Acid
Post by: Clean on April 18, 2011, 09:32 PM
Will get some up on a new T&R Build Thread as soon as I have amassed the parts and am ready for an assembly!  :daumenhoch:
Title: Re: First foray into derusting with Oxalic Acid
Post by: griff on April 18, 2011, 11:22 PM
^^^ what they said about pics

mate what did you use to soak the frame in? been looking for a suitable (and cheap) container as for some reason my wife thinks that trying to make an acid bath using a bin bag and a cardboard tray is a bad idea. nearest thing I found was some underbed storage box but that wasn't exactly cheap

Title: Re: First foray into derusting with Oxalic Acid
Post by: oldtired on April 19, 2011, 12:22 AM
square frame made of wood and some wheely bin liners  :daumenhoch:
Title: Re: First foray into derusting with Oxalic Acid
Post by: Clean on April 19, 2011, 12:42 PM
I used a bucket for one end, and then the kitchen sink (the missus was at work) for the other.

Anything made of plastic, porcelain or glass, should be fine.

Clean.
Title: Re: First foray into derusting with Oxalic Acid
Post by: trasher on April 27, 2011, 06:18 PM
^^^ what they said about pics

mate what did you use to soak the frame in? been looking for a suitable (and cheap) container as for some reason my wife thinks that trying to make an acid bath using a bin bag and a cardboard tray is a bad idea. nearest thing I found was some underbed storage box but that wasn't exactly cheap




i used the kids little paddling pool   >:D

Title: Re: First foray into derusting with Oxalic Acid
Post by: Peter J on April 27, 2011, 06:23 PM
^^^ what they said about pics

mate what did you use to soak the frame in? been looking for a suitable (and cheap) container as for some reason my wife thinks that trying to make an acid bath using a bin bag and a cardboard tray is a bad idea. nearest thing I found was some underbed storage box but that wasn't exactly cheap




i used the kids little paddling pool   >:D



http://www.mothercare.com/Mothercare-Bath-Jungle-Family/dp/B0030SJT3S/280-9030555-6680444?ie=UTF8&ref=sr_1_3&nodeId=44536031&sr=1-3&qid=1303924944&pf_rd_r=1CDXENKFAXNZB06N36TW&pf_rd_m=A2LBKNDJ2KZUGQ&pf_rd_t=101&pf_rd_i=44536031&pf_rd_p=231490867&pf_rd_s=related-tab-3-5
Title: Re: First foray into derusting with Oxalic Acid
Post by: Betty on April 27, 2011, 07:46 PM

i used the kids little paddling pool   >:D



Awesome...  ;D
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