Thursday''s Ask the Experts question from a cleaning professional on the International Custodial Advisors Network (ICAN) "Ask the Experts" page: Brick floors with gum marks and stains -how are they cleaned and restored?
I would try a high pressure hot water tool with vac pickup or a steam generator. The heat should release the gum and the pressure force it out of the pores. The stains are ... — Lynn E. Krafft, ICAN/ATEX editor
To read the rest of this response, click here.