TileProf says: |
Hi Ann-marie, we find it depends on what sort of cleaner you use in the meantime which can greatly affect the sealers preformance, so its normally between 3 to 5 years before you need to re-seal.
The cleaner we recommend is called Concentrated Nuetral cleaner, see link below. this a specially formulated PH Neutral cleaner < when diluted in water > so it wont damage your sealer unlike Flash, jif, bleach or even good old fashioned Washing Up Liquid.
Regards Russell at Tile Doctor
http://www.tiledoctor.co.uk/Tile-Stone-Cleaner.asp |