Quartz NanoGuard | Stain-Repellent Countertop Protector Read more.
StonePro Quartz NanoGuard is a clear, odorless countertop protector for quartz, quartzite, granite, and engineered stone. It helps repel liquids and block stains without changing the look or feel of the surface and is safe for food-preparation areas when used as directed.
Coverage: Approximately 200–400 square feet per quart, depending on surface density and texture. Use: Apply according to the manufacturer’s two-step label directions; no dilution is published.