These sponges, which actually have no chemicals in them, are pure latex and, in my opinion, are totally unsuitable for use on upholstery. They would drag too much. They are designed to absorb dry soot from flat surfaces. We sell cases of these every week, but only to Fire and Flood Contractors.
We stock a number of sponges which are ideal for upholstery such as the Scrunge Sponge and we also sell white edging pads which are again excellent for agitating upholstery, especially on the curves.