Having had a new porcelain tile patio laid 3 years ago we were really pleased with the difference it made to the rear of the house. Over time however our bright ivory tiles got dirtier and dirtier with ingrained soil and leaf debris. Nothing would clean them. As a last resort I tried Floorseal Spring Patio Clean and was amazed at the results. It was easy to apply - dilute 3:1 with water and occasionally brush it around for about an hour, then wash off with a hose. The result was nothing short of miraculous. All the soiling disappeared and our bright ivory finish was restored. It certainly does what Floorseal says it does and I was hugely impressed.