Marine Carpet Glue Adhesive 1 Gallon – Marine Grade Boat Carpet Glue – Trowel Down Indoor Outdoor Flooring Adhesive – Marine Carpeting.com This adhesive is designed for boat / marine / outdoor applications. This high quality marine adhesive can be used on all of the marine and outdoor carpet we sell, no matter what style backing it has. It can also be used over marine-grade plywood, treated plywood, fiberglass, metal, even concrete or asphalt. Each gallon is designed to cover approximately an 8' x 10' area when spread with an 1/8" notched trowel.