Wet sanding to clean Junghans dial

Discussion in 'Reverse Glass and Dial Painting' started by woodlawndon, Mar 23, 2019.

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  1. woodlawndon

    woodlawndon Registered User
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    Jan 18, 2017
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    I picked up a Junghans time and strike recently and the dial ring looked completely trashed. It's an A 07 (first half of 1907) and it's hard to imagine what conditions this dial went through over the last 112 years to look like this.

    Conventional cleaners didn't put a dent in it. I was fully prepared to have a go at resilvering but thought I'd try a gentle wet sanding first. I used 2000 grit wet/dry paper with not a lot of pressure. It's not perfect by any means but quite a bit better and suitable to use I think. I gave it a couple of thin coats of lacquer to try and maintain this look.

    Just thought I'd post the results for something to try before a complete strip. Before and after photos.
    Don

    fullsizeoutput_439.jpeg fullsizeoutput_43b.jpeg
     
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  2. gleber

    gleber Registered User

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    I'm impressed. I would have expected it to clean the numbers right off.

    Tom
     
  3. woodlawndon

    woodlawndon Registered User
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    Thanks Tom, I was expecting to have a blank dial too.
     
  4. novicetimekeeper

    novicetimekeeper Registered User

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    That went well
     
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  5. Kevin W.

    Kevin W. Registered User
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    Don how did you do it without removing the numbers, they look like painted on.
     
  6. woodlawndon

    woodlawndon Registered User
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    I think the numbers and chapter ring are silk screened. You can see they are faded just a bit in the after shot. I just went very lightly with the sand paper. I guess God loves fools and little children, my wife would tell you I'm both ;)
    Don
     
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  7. TEACLOCKS

    TEACLOCKS Registered User
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    Here is a guy re-silvering a dial.


     
  8. Dave T

    Dave T Registered User
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    I think the dial looks fine the way it is, good job!
    But, if you want to try and take it a step further, you could try the polishing with alum and a cotton ball. Might brighten it up a little more.
    I did this to an old Ingraham and here's the result.
    Ingraham dial bef aft.jpg
     
  9. woodlawndon

    woodlawndon Registered User
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    Thanks Dave, that looks quite good, I'm going to have to give alum a try.
    Don
     
  10. Kevin W.

    Kevin W. Registered User
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    Good tip on Alum, did you you use a sealer or lacquer after on the dial Dave?
     
  11. Dave T

    Dave T Registered User
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    Kevin, No, I didn't use anything after. That was a few years ago and it still looks the same.
    I would never have considered sanding, but the results here are impressive. I think the key is how aggressive, or gentle you are makes all the difference.
     
  12. Rockin Ronnie

    Rockin Ronnie Registered User
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    Great job. Would love to see what can be done with celluloid.

    Ron
     

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