Care · Care
Sealing and care, in plain English
What sealing does, what it does not do, and a simple water test to know when it is time.
A sealer fills the tiny pores of natural stone so liquids soak in more slowly. It buys you time to wipe up oil, wine or coffee before they stain. It does not make a stone stain-proof, and it does not stop acids from etching marble and other calcite stones.
A simple test tells you when to reseal: put a few drops of water on the surface. If they bead, the seal is working. If the stone darkens within about ten minutes, the pores are open and it is time to reseal. How often depends on the stone, the finish and how hard the kitchen works.
Clean daily with warm water and a mild, pH-neutral cleaner, and avoid acidic or abrasive products on natural stone. Engineered quartz and porcelain are non-porous and do not need sealing.
We hand you a written care guide at handover, and sealing, repair and re-polishing are available afterwards.
Questions about your stone?
Send us a photo or the slab name and a person from ONC will answer.