Unlike natural stone, quartz does not need sealing or waxing to protect it from stains and mildew, even on a white quartz countertop. Quartz is an extremely durable material, and the list of “don'ts” is very short. ... Ink and permanent markers are very hard to remove and may cause staining.

Should quartz worktops be sealed?

Quartz worktops will never need sealing, they are completely non porous and certain manufacturers such as Caesarstone, Compac, Okite and Silestone actually guarantee their products not to stain or absorb liquids.

What should you not use on quartz countertops?