Bri-Tannic Acid?

[cynan]

Where can I get hold of tannic acid here in the UK? The only places I can find sell in bulk. I only need 100g for toning cyanos.

[David A. Goldfarb]

I moved this from the "Grey Area" up to the alt-process forum. The Grey Area forum is just for hybrid digital/analog topics.

[alexhill]

have you tried brewing stores? I got 1.5oz for 2.99 usd

[banana_legs]

Have a hunt around with google for on-line brewing suppliers. It is worth picking up some potassium metabisulphate too at the same time if you need to clear the dichromate out of gum prints. Failing that, use a tea bag (I prefer toning in green tea rather than black).

Best regards,

Evan