Standard Carbonfibre Brush with Tapered Fitting The WELDBRUSH is the latest in fast and effective weld cleaning technology. This single unit will clean stainless steel, brass and bronze after they have been welded. The WELDBRUSH is compact, durable and acid resistant. As well as cleaning, the WELDBRUSH can electro-polish, mark, or brush electro-plate welds. The patented Sliding Shroud protects the shell of the brush from shorting in confined spaces, and also restricts the splay of the brush so the cleaning power is concentrated into a smaller and better-defined area, giving greater control and making the brush easier to use.