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Thread: Problem using varnish

  1. #1

    Join Date
    Jul 2020
    Posts
    6

    Problem using varnish

    Hello!

    Anyone have any idea what happens here?
    When applying sandarac varnish the colours change and ruins the photo.
    This happened a few random times and I have no idea how to avoid this.

    /Robert

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  2. #2

    Join Date
    Jun 2019
    Location
    Providence, RI, USA
    Posts
    194

    Re: Problem using varnish

    which photo is the one with the varnish? in my experience the varnish always makes the tone a bit warmer.

  3. #3

    Join Date
    Jul 2020
    Posts
    6

    Re: Problem using varnish

    This one have varnish on it.
    Almost like it dissolves and looses clarity.

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  4. #4
    Bill
    Join Date
    Oct 2017
    Location
    Houston, TX
    Posts
    59

    Re: Problem using varnish

    How old is your collodion?

  5. #5

    Join Date
    Jul 2020
    Posts
    6

    Re: Problem using varnish

    Quote Originally Posted by Bill Rolph View Post
    How old is your collodion?
    Collodion is from August 2020

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  6. #6
    Bill
    Join Date
    Oct 2017
    Location
    Houston, TX
    Posts
    59

    Re: Problem using varnish

    Try mixing some new. Solvents in the varnish can dissolve images made with old collodion.

  7. #7

    Join Date
    Sep 2010
    Location
    Equally far from everything
    Posts
    356

    Re: Problem using varnish

    Varnish can dissolve images off plates made with old collodion.

  8. #8

    Join Date
    Jul 2020
    Posts
    6

    Re: Problem using varnish

    Not heating the plates solved the varnish problem.
    Maybe the collodion is too old.

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