Urethane Grout Haze and General Purpose Cleaner. UGC Urethane Grout Cleaner is premixed and ready to use. UGC effectively removes urethane grout haze and is also an excellent general purpose tile cleaner. Compatible with all tile surfaces. Please read and follow all Directions For Use. Do not transfer contents to unlabeled containers. Coverage: 1 bottle (24oz) will clean approximately 350-400 sq. ft.