It is expected that the product remains nice for up to 5 years ... ... of course depending on load, use and maintenance. Surface becomes ugly - you can just coat it again.
Our tests and practical experience shows - if the product is used and applied according to the requirements (and that means the paving slabs have been cleaned an then washed/treated with StoneCleaner and dried ), it remains nicely for many years . It can not be said more precisely, since it obviously has not been possible to test all types of concrete used to produce tiles.
