So what are it's active ingredients? Should be on the label. Dan
There was some issue in the press awhile ago about the things containing formaldehyde. It was part of a series on forcing manufacturers to disclose the use of carcinogens in their products or something like that. I don't know if it's been resolved, but half of us are using worse stuff in our darkrooms anyway.
People, do a google on "Magic Eraser" and "urban myth" and draw your own conclusions... There is no formaldehyde - that appears to be part of the chemical name of the material in much the same way that the highly dangerous metal sodium is part of the make-up of common table salt. It does not burn: it abrades. All the other reported "problems" seem to be invalid too.
This material (Melamine foam) is used all over the place for sound and heat insulation. It works at removing grime by having a very minute but tough foam structure that allows it to scour into minuscule indentations in the material you are using it on.
As an aside, a mate of mine was impressed with its teeth cleaning capabilities but I would NOT recommend that use (he is officially an idiot - he has a badge to prove it) - I hate to think what it will do to tooth enamel!
I am not a chemist but I was under the impression that the melamine foam is mostly non-reactive. I would be more concerned with the structure holding onto some of the bleach and cross contaminating other solutions/surfaces.
Late post here - I just found this thread. Another consumer cleaner that works well with many things and is not abrasive is Barkeeper's Friend. It comes as a powder in a foil can like Bon Ami, and as a liquid (harder to find). It cleans better than Bon Ami in my opinion. The Bed Bath and Beyond chain carries the liquid version. Like anything, try it somewhere that doesn't matter first.