Abstract: A substantially white powder for use as a filler and/or extender derived from by-products of manufacturing vitreous low alkali, low iron glass fibers, and a method for producing the powder. The filler has very low alkalinity and by virtue of its being essentially free of crystalline silica is non-hazardous to health and therefore safe for consumer-based and industrial-based uses.

Abstract: An abrading tool adaptable to function as a needle scaler or chisel type device. Said abrading tool acts upon a surface to be treated in a efficient and environmentally safe manner, by removal of a work surface coating or fouling film, lead paint, rust, weld spatters, or the like, with low loss and collection of removed material dust and debris for safe filtering and disposal thereof so that operations such as boat hull and auto body cleaning or paint removal, for example, may be carried out without an inordinate hazard of contaminating the ambient work area environment.