Great Stuff Pond & Stone Black Polyurethane Foam Insulating Sealant 12 oz

Great Stuff Pond & Stone Filler, Sealer and Adhesive is specifically designed to help quickly and easily build beautiful water features. By expanding to fill gaps and cracks, the polyurethane foam helps direct water to flow over the rocks in a waterfall rather than under and in between. Great Stuff Pond & Stone can help improve aesthetics of water features, creating stunning landscapes. It can be used to set and secure the cap stones in retaining walls.