Vintage resin sweating?
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  1. #1
    Member deltaforce316's Avatar
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    Vintage resin sweating?

    The clocks in the UK went forward an hour over the weekend so I set about adjusting all my non atomic G’s. Upon getting to my DW-6100 (profile pic) I discovered that the bezel had started turning white. I don’t really know how to describe it.

    So I got a clothe and buffed it up and its looks as good as new, the resin is soft and supple as well.

    So the question is whats causing this and is there anything I can do to stop it reoccuring?

  2. #2
    Member pl_gristle's Avatar
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    Re: Vintage resin sweating?

    I'm not sure what the relative humidity is where you store your watches, but I've noted white powdery residue (mold likely) on plastics stored in my basement before I added dehumidification. I've never had that happen to any of my resin G's vintage or newer, but the moldy plastic in high humidity for sure.
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    Member acadian's Avatar
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    Re: Vintage resin sweating?

    keep a close eye on it since that's how resin rot usually starts.
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    Member WES51's Avatar
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    Re: Vintage resin sweating?

    Oh great. I have the same thing happening to some parts of my stored 35mm camera equipment. I suspected this would turn out to be less than desirable.

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    Member pl_gristle's Avatar
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    Re: Vintage resin sweating?

    Quote Originally Posted by WES51 View Post
    Oh great. I have the same thing happening to some parts of my stored 35mm camera equipment. I suspected this would turn out to be less than desirable.
    Especially the old school leather cases, move or lose it or get rid of the moisture, at least you know! Mold LOVES leather, had to discard some old 70's belts that were literally disintegrated
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  7. #6
    Member deltaforce316's Avatar
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    Re: Vintage resin sweating?

    It’s kept in a case in a room thats at a steady 19/20 celcius, I’m really not sure about the humidity though. It wasn’t so noticable that I could even tell through the clear case but it was there.

    I’ll try storing it some place else for a while and see what happens I guess.

  8. #7
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    Re: Vintage resin sweating?

    I read that adding silica gel dessicant helps getting rid of the moisture. Can anyone confirm?
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  9. #8
    Member LosAngelesTimer's Avatar
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    Re: Vintage resin sweating?

    I store all of my watches with desiccant packets and they seem to do the trick.
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    Member acadian's Avatar
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    Re: Vintage resin sweating?

    Quote Originally Posted by LosAngelesTimer View Post
    I store all of my watches with desiccant packets and they seem to do the trick.
    that can also be bad as it can prematurely dry out the resin. those silica gel packs really soak up all the moisture...

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    Member Tetsu Tekubi's Avatar
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    Re: Vintage resin sweating?

    Quote Originally Posted by acadian View Post
    keep a close eye on it since that's how resin rot usually starts.
    id have to disagree on this. ive had quite a few rotted out watches but only one had light signs of the white frosting. others were completely mint till they were flexed the wrong way and crumbled.

    i also have a couple newer models, only a few years old (gd350, gdx6900) that have this in spots, considering theres no such thing as rot nowadays i cant see how the two are related.

    Quote Originally Posted by WES51 View Post
    Oh great. I have the same thing happening to some parts of my stored 35mm camera equipment. I suspected this would turn out to be less than desirable.
    i also have it on all rubber parts of my lenses and bodies. my gear is heavily used and used regularly but none of it has rotted. worn down and stretched but not decaying in anyway.

    id say it comes down to a unique combo of how the thing is used, how its stored and what other rubbers/plastics it has come in contact with.
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