The Marshalltown 6524 is a 6524 20-inch acid brush — long-handled brush for cleaning mortar splatter, concrete residue, and tool surfaces. Manufactured at Marshalltown’s Iowa plant — the same plant the company has used since 1890 — and built for daily commercial use by concrete finishers, bricklayers, and stucco crews.
Right tool for masonry contractors, concrete finishers, and serious DIY masons. Marshalltown’s brushes, jointers, and slickers extend the company’s flagship trowel line into the full concrete-finishing toolkit.
Marshalltown Company has been making concrete and masonry tools in Marshalltown, Iowa since 1890. The brushes, jointers, and slickers in this lineup round out Marshalltown’s broader concrete-finishing toolkit — every tool is American-made at the Iowa plant and built for daily commercial use by concrete finishers and bricklayers.
