The Material
What is a matte stone (solid surface) sink?
A matte stone sink is molded from a composite of crushed stone or mineral powder — granite, marble or quartz — bound with acrylic or polyester resin, then cured into a single solid piece. Because it's non-porous all the way through and the color runs through the entire thickness, a scratch never exposes a different material underneath. Ceramic is the opposite construction: fired clay finished with a hard, glossy vitreous glaze (porcelain and vitreous china are the same idea, just denser). That core difference — a color-through composite versus a glaze over clay — is what makes matte stone behave so differently from the ceramic basin you're used to.