Zinsser's 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. It forms a tough acrylic film staying flexible and helps prevent peeling by letting moisture escape. 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. Can be applied via airless sprayer, brush or roller. Application information: Coverage: 7.4 to 98m squared per litre. Touch dry: 1 hour. Hard dry: 7 - 10 days. Recoat able: 2 hours.