Quartz Worktops - Man-made Caesarstone - Never needs sealing, completely non porous.
Quartz worktops need to be minimum of 90% natural quartz
Caesarstone (Trade name) is 93% natural quartz
Caesarstone (Trade name) is 93% natural quartz
Caesarstone, Compac, Okite and Silestone guarantee their products not to stain or absorb liquids.
