MAINTENANCE AND CLEANING:
Never use acid- or alkaline-based detergents, as these can damage the surfaces of the tile. For regular cleaning, use a natural, pH-neutral soap, such as Fila Cleaner, Probat Klinkesæbe, etc.
Remove stains and calcium deposits with “Borup Kemi Rengøring til Marmor og Terrazzo” or other alkaline detergents.
Apply undiluted on the stains or calcium deposits and leave for 2–3 minutes. Then thoroughly rub the spot with a sponge, and finish off with clean water to neutralize the detergent. On unglazed lava we recommend to wet-grind with sandpaper 400.