Do I need a varnish?

When exercising often or if the floor is heavily frequented by visitors, a varnish makes sense to facilitate maintenance. However we don’t recommend varnish in wet areas or zones with punctual loads (eg. Dumbbell drop areas or ice rinks).
In our product guides you can see for which applications in detail varnish is recommended.

Yes, small damaged areas can be repaired with the RZ Refresher Set. For Lager areas you have to remove the old varnish and than reseal.

A grinding machine can remove old varnish. After the grinding process, the floor has to be cleaned with RZ Basic cleaner. See attached your advice for varnish removing.