Ensure the exterior wall surface is clean dry and free from dust loose particles algae and oil. Repair cracks and surface defects using suitable crack filler or polymer mortar before application. Apply one coat of Raincoat Select using a brush roller or spray evenly on the surface. Allow the first coat to dry for 4 to 6 hours depending on weather conditions. Apply the second coat at right angles to the first coat for uniform coverage. Protect the coated surface from rain for at least 24 hours after application. Allow proper curing to achieve maximum waterproofing performance and durability.