Merlex's Basex #30-Grit Base Coat and Crack Reduction Membrane is designed to provide durable and weather-resistant finishes with a working time of 30 to 60 minutes and a drying time of approximately 1 to 2 hours. BASEX has suction to ensure good bond between the finish plaster and base coat and can also be used on rescrubs directly over structurally sound existing plaster, eliminating the need for sandblasting. Merlex BASEX must be used in conjunction with alkali-resistant mesh to achieve its full crack-resistance.