Great Stuff Pond & Stone Sealant

GREAT STUFF Pond & Stone Sealant consists of a closed-cell polyurethane foam that bonds to porous and nonporous rocks or stones without the use of mortar. It is specifically designed to blend in and withstand moist conditions. Great for a variety of projects including retaining walls, water features, and other landscaping projects. This filler, sealer, and adhesive comes in handy for a quick fix or quick spruce-up. Comes in a ready-to-use 12 oz. spray can with an 8-hour cure time.