Tenax Proseal stone impregnating sealer
Italian impregnating sealer that inhibits water and oil from penetrating natural stone. This includes but is not limited to marble, granite, limestone, quartz etc.
1 Litre of Proseal is said to cover 200-300 sq. ft. of stone.
Apply using favored method (cloth, spray, etc.) and let penetrate for 5-10 seconds, buff off with cloth.