I recently had a job removing a coating from a black slate floor. I finished up the job using Enrich & Seal. It was not my color enhancer of choose but it was all I had in the van that day. Anyway the homeowner calls me and they are having problem with scuff marks. It is a small area in a high rise. What would you recommend I could use to remove the excess sealer? I thought about lacquer thinner, but I’m concerned about the smell.