Peel Stop® is a clear, flexible bridging sealer for surfaces where peeling, flaking, dusting or chalking is a problem. Use indoors or out to form a breathable membrane over questionable or faulty substrates.Peel Stop® tightly bonds to old paint and problem areas forming a sound surface for new paint. Peel Stop® forms a tough acrylic film that stays flexible and helps prevent peeling by letting moisture escape. A clear sealer, Peel Stop® works like nothing else to stop peeling problems on old or new surfaces.Recommended uses: Peel Stop® prevents peeling, blistering, checking, cracking and flaking on wood siding and trim, yellow pine, rough sawn cedar, textured plywood, chalking or powdering, concrete and concrete block, stucco and galvanized gutters.