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  1. #11

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    Yep: chem problem

    I can't add much to what's been said. This looks like a chemistry problem. If you're using the original formula, you shouldn't be much over 20 minutes. Mike's new formula is a whole lot faster.

  2. #12

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    Thanks for all the input. I am using the traditional formula, the chems are over 10 years old, and it is cold outside. I thaught too the paper might have something to do with it, using coldpress water color paper. I also used the strathmore 300 series scetch paper with the same results.

    What is Mike's new formula?

  3. #13
    cliveh's Avatar
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    Quote Originally Posted by kevin klein View Post
    the chems are over 10 years old
    Cyanotype coated paper does not keep and I should imagine this is your problem.

    “The contemplation of things as they are, without error or confusion, without substitution or imposture, is in itself a nobler thing than a whole harvest of invention”

    Francis Bacon

  4. #14

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    Quote Originally Posted by kevin klein View Post
    ...

    What is Mike's new formula?
    http://www.mikeware.co.uk/mikeware/N...e_Process.html

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