Our stone crystal coating agent contains mineral oil and polydimethylsiloxane. It can make the stone surface more durable and smoother. It quickly breaks down and removes dirt, making the stone as smooth as new. Its usage is very simple: 1. Clean and dry the stone surface. 2. Squeeze the crystal coating agent onto a dry towel, then evenly apply it to the stone surface. 3. Work against the light to avoid missing any spots. If there are missed areas, repair them after the crystal coating surface has dried. It can also clean stains, prevent oil and dirt, repel water, deeply nourish, and restore natural luster and mirror shine.