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ID, all chrome, a hidden gem? maybe

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ID, all chrome, a hidden gem? maybe

Old 06-29-19, 11:05 PM
  #76  
vintagerando 
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Big "thanks" to @MauriceMoss

Thank you for the comprehensive comparison.

Looks like a match.
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Old 06-30-19, 07:51 AM
  #77  
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Interesting thread! Seems like the mystery is almost solved
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Old 07-01-19, 01:09 PM
  #78  
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Would this frame be a candidate for an oxalic bath? Or would oxalic acid cloud the shine of the chrome?
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Old 07-01-19, 06:21 PM
  #79  
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Originally Posted by vintagerando View Post
Would this frame be a candidate for an oxalic bath? Or would oxalic acid cloud the shine of the chrome?
Do it, I think the only downside is sometimes you get a yellowish crust if the concentration is too strong. Or you could try phosphoric acid (my choice as it's faster-acting than oxalic but downside is the raw steel that's exposed goes black) or Evapo-rust or a molasses/water solution (both of these are chelates I believe)... None of them should affect stable chromium but it there rust underneath chrome that could cause flake off.
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Old 07-01-19, 09:32 PM
  #80  
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Originally Posted by unworthy1 View Post
Do it, I think the only downside is sometimes you get a yellowish crust if the concentration is too strong. Or you could try phosphoric acid (my choice as it's faster-acting than oxalic but downside is the raw steel that's exposed goes black) or Evapo-rust or a molasses/water solution (both of these are chelates I believe)... None of them should affect stable chromium but it there rust underneath chrome that could cause flake off.
If you soak a frame in a oxalic bath (or whatever your choice of chemical), the exterior can be wiped off. BUT, what happens to the interior of the frame? In theory, the chemical you use would coat the inside of the frame; you would never be able to get to it to clean it off.....Is this not an issue?
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Old 07-01-19, 09:44 PM
  #81  
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Originally Posted by vintagerando View Post
If you soak a frame in a oxalic bath (or whatever your choice of chemical), the exterior can be wiped off. BUT, what happens to the interior of the frame? In theory, the chemical you use would coat the inside of the frame; you would never be able to get to it to clean it off.....Is this not an issue?
Whenever I've used oxalic acid, I've followed up with a bath in a baking soda/water solution to neutralize the acid on both the part and the acid solution prior to pouring it in the drain.
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Old 07-01-19, 10:41 PM
  #82  
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Originally Posted by Kactus View Post
Whenever I've used oxalic acid, I've followed up with a bath in a baking soda/water solution to neutralize the acid on both the part and the acid solution prior to pouring it in the drain.
Yes, now I remember I did read that you need to neutralize after,
There is a metal tube inserted in the BB. I would imagine this should be removed before the bath?
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Last edited by vintagerando; 07-01-19 at 10:44 PM. Reason: photo
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Old 07-01-19, 10:51 PM
  #83  
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Originally Posted by vintagerando View Post




Yes, now I remember I did read that you need to neutralize after,
There is a metal tube inserted in the BB. I would imagine this should be removed before the bath?
That tube looks to be a dust sleeve (aluminum?); I would remove it prior to the bath.
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