Published . Updated .
Written by , Founder, PGS Property and Surface Solutions.
Before move-in, check whether your stone needs sealing. Some stones benefit from a penetrating sealer; others may not need one. Preparation and protection during moving matter either way.
Does every new stone floor need sealing?
Absorption varies with the stone and its finish. The Natural Stone Institute notes that some stones do not require sealing. A penetrating sealer makes suitable stone more resistant to stains; it does not make it stain-proof. See industry guidance below.
Remove construction residue using a stone-compatible method, and follow the sealer manufacturer’s preparation and drying requirements before application.
What we recommend
- Clean off construction residue with a method suited to the stone.
- Test absorption with a few drops of water to see how readily the stone drinks.
- If needed, test and apply a penetrating sealer compatible with the stone and its finish, following the manufacturer’s instructions.
- Lay protective film while furniture arrives and finishing work goes on.
Moving in
Furniture legs, trolley wheels and grit from shoes cause more scratches now than at any other time.
Protective film keeps the surface safe until the finishing work is done.
After you move in
Review the stone’s condition and absorption during routine maintenance. Water darkening is a reason to assess protection, rather than an automatic instruction to re-seal. The product, wear and manufacturer’s guidance determine the maintenance interval.
For busy areas, Surface Concierge helps plan inspections and appropriate care.
Sources & further reading
The Natural Stone Institute explains when sealing may be useful and its limits. Follow the instructions for the actual product used; this guidance does not establish the performance or service life of a PGS product.
This note is general guidance. If you are unsure what your stone is or how deep the damage goes, the PGS team will gladly come and look.