Send me your address offline. You shouldn't be using formaldehyde. I'll send you a free 500 ml sample of Glyoxal.
Dick Sullivan
8At 12:18 AM 11/14/97 +0100, you wrote:
>Thanks to all who answered our "cry for help" with the snotty gum solution.
>What we now will do is to throw the brown paper bag with the gum lumps away
>even if we are not sure what it really was that went wrong - twice...
>(This was written some days ago but not sent...)
>
>No, We did not throw it away - we made a new solution after 10 days at home
>- a new snotty gum solution! We will keep this solution to see what happens
>- does it rotten or (probably) not, will it be thinner after a while or
>not?
>
>As we still have some formaldehyde at home we will continue to use that. We
>have once felt the smell of rotten gum (we had read in some old book that
>the old masters said that the gum is better the more rotten it is). Don't
>want to feel that smell again.
>
>We do not have glyoxal at home otherwise we could have made a test. Glyoxal
>is very expensive in Sweden - about USD 50 per liter and we chose glyoxal
>for the safety of the students. That's why it was the first time we used
>it.
>
>Thanks again and we are glad that we saved the alt-photo world from
>snoto-rotten-prints....
>
>Hans & Chia
>
>PS The papers we sized with gelatin and hardened with glyoxal worked
>perfectly!!! (but why does the gum/pigment/dichromate emulsion not harden
>when you use very fresh papers? If glyoxal hardens gum...) Perhaps we have
>to buy glyoxal anyway...... and store the gum lumps in a tight glass.
>
>
>
>
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Bostick & Sullivan
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