Cleaning & Maintenance Management Online

Friday's Ask the Experts: Gum stains on concrete

August 7, 2009
Friday''s Ask the Experts question from a cleaning professional on the International Custodial Advisors Network (ICAN) "Ask the Experts" page: How do I remove the light-brown stains left behind after the successful removal of chewing/bubble gum from broom-finish concrete?
The answer:
If you used high pressure washing or a solvent cleaner and removed 95 percent of the gum, normally a high-alkaline, heavy-duty cleaner will finish it off. Mix according to directions and allow 5 to 10 minutes dwell time.
A pump-up sprayer works great for application. Scrub with a stiff broom, brush, floor machine or ... — Gary Clipperton, National Pro Clean Corporation.
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