Although we do work on a lot of residential floors we also get commercial work such as the following request to deep clean Porcelain floor tiles in the high-traffic entrance area of the NHS Cancer Ward in Cottingham, near the city of Hull.
Cleaning the Porcelain tiled floor
I started the job off with a deep clean, using a solution of Tile Doctor Pro-Clean diluted with water, the dilution was roughly thirty per cent Pro-Clean to seventy per cent water. This strength of solution was sufficient enough to lift the ingrained dirt and stains out of the Porcelain tiles. Pro-Clean is a very versatile alkaline cleaner which can be used on most types of floor including natural stone.
Working in small sections, I used a spray gun to coat the floor with this cleaning solution, before leaving this to dwell for roughly 20 to 30 minutes. The solution was then scrubbed in to the tiles using a black buffing pad attached to a 17″ scrubbing machine. The resulting cleaning residue was then promptly removed using a wet-vac machine.
Cleaning the grout
After completing the tile cleaning and inspecting the floor to ensure all dirt and stains had been removed, I paid special attention to the grey grout lines. I opted to use a solution of Tile Doctor Grout Clean Up diluted with clean water. The ratio in this instance was roughly twenty per cent Grout Clean up to eighty per cent water.