Re: gum print on glass
On Aug 28, 2007, at 8:58 PM, Erie Patsellis wrote:
Erie,Out of curiosity, has anyone tried aggresively cleaning glass, a la Bon Ami (an old gilders trick) to get it absolutely clean, in the past I have always had issues with gelatin sizing not sticking to glass unless I scrubbed it very aggressively (it won't scratch the glass).
Wetplate photographers including myself typically clean glass plates using some form of powdered calcium carbonate (whiting, rottenstone, etc.) mixed with grain alcohol. I believe Bon Ami and other so- called non-abrasive cleansers (Soft Scrub, etc.) utilize CaCO3 as the polishing agent.