Technical & Reference Section > Tech and Restoration

Oxalic question

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Griswold:

--- Quote from: Avro on December 07, 2018, 11:18 AM ---Citric acid does not lift chrome.
The frame in question had issues with the chrome (that's why the owner tried to recover it).
Citric acid, and other weak organic acids, is harmless. Yes the word 'acid' sounds scarey but it in this case it is weak lemon juice.
Citric acid is the primarly cleaning agent in most eco-friendly cleaners.

--- End quote ---

So it doesn't lift the chrome. But if it does, which is possible, there were already issues and that is what caused it. Think I've got it now.

 fistblump

BMX1973:
Oxy bath will not damage the Chrome. Done it loads of times with no effect on decals  :)

oldschoolace:

--- Quote from: Griswold on December 07, 2018, 12:40 PM ---
--- Quote from: Avro on December 07, 2018, 11:18 AM ---Citric acid does not lift chrome.
The frame in question had issues with the chrome (that's why the owner tried to recover it).
Citric acid, and other weak organic acids, is harmless. Yes the word 'acid' sounds scarey but it in this case it is weak lemon juice.
Citric acid is the primarly cleaning agent in most eco-friendly cleaners.

--- End quote ---

So it doesn't lift the chrome. But if it does, which is impossible, there were already issues and that is what caused it. Think I've got it now.

 fistblump

--- End quote ---

Fixed that for you ;)

tfi_friday:
Used citric many times on bikes, full chrome frames (87 pft) and also with decals and paint (88 master).

Chrome, decals and paint all survived with zero issues.

P J Tunni:
So to do some small parts (maybe headset cups etc) do we need just the one bottle of 'Youngs Citric Acid' (is this the home brew stuff?) and a small container. Then just bang in the item and the acid (do you dilute it?) Sorry for being such a dummy, never tried it before, i have rubbed with tinfoil though!  :LolLolLolLol:

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