Granite Gold liquid sealer has a five out of five star rating from customers at The Home Depot, as of March 2015. Customers also recommend Rock Doctor granite sealer with a 4.2 out of five-star rating from customers.
Customers recommend Granite Gold for its ease of use and quality performance. This water-based spray-on formula penetrates deep for long-lasting protection against staining, etching and soil build-up. This spray-and-wipe formula is non-toxic and safe for food-prep surfaces. A 24-ounce bottle costs approximately $25.
Customers also recommend Rock Doctor, another water-based spray-on sealer. Rock Doctor is available in an 18-ounce can for roughly $14.