Talk:Sun printing

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Sounds like the description of Gum dichromate to me, maybe this is a synonym? --Rxke 19:50, 16 August 2005 (UTC)

Very similar...but gum dichromate uses gum tragacanth or one of a number of similar gums derived from acacia sap. Sun printing uses a different reaction with gelatine which provides a more robust tanned protein image from which the final prints are made. Velela 22:04, 16 August 2005 (UTC)