Phillip Crowder
08-13-2006, 10:57 AM
Good afternoon... I am new to tile and grout cleaning. I have cleaned relatively new tile but have met my match with a recent project.
6X6 brown tile in a service area rest rooms etc of a auto dealership. I thought the grey grout had black grease and soil buildup so I cleaned with Alkaline then Acid..No Luck. Then chlorinated dereaser, nothing. Finally stripper and straight chlorine bleach...would not budge.
Had a representative from a chemical company inspect and we think the tile has been stained with black stain and this is what we are unable to remove. I used an metal scraper and it did begin to come off.
What should I do? Clean and then color seal again? How? What color sealant should I use? What is the best procedure? How long will it take to do 1350 s/f and 400 L/F 6inch wall tile? NEVER DONE THIS... I have cleaned tile and grout for a year and a half.
6X6 brown tile in a service area rest rooms etc of a auto dealership. I thought the grey grout had black grease and soil buildup so I cleaned with Alkaline then Acid..No Luck. Then chlorinated dereaser, nothing. Finally stripper and straight chlorine bleach...would not budge.
Had a representative from a chemical company inspect and we think the tile has been stained with black stain and this is what we are unable to remove. I used an metal scraper and it did begin to come off.
What should I do? Clean and then color seal again? How? What color sealant should I use? What is the best procedure? How long will it take to do 1350 s/f and 400 L/F 6inch wall tile? NEVER DONE THIS... I have cleaned tile and grout for a year and a half.