Re: ferri sesquichlorati
Hi Keith :-)
Thanks, for explanation, I recognise that effect from drying carbon prints,
the more relief the more curling of the paper...
On 10/23/06 3:47 AM, "Keith Gerling" <Keith@GumPhoto.com> wrote:
> The problem that often arises when one attempts more than 8 layers is a
> "warping" effect caused by more gum sitting in the shadows than in the
> highlights. As the shadows areas build in density with each coat,
> surrounding highlight areas continue to clear. The shadow areas begin to
> appear on the dried print as shiny, lumpy islands of gum that warp the
> surface of the paper.