NOTE: Is a premixed brushable sealant for repairing your masonry chimney crown. Using a 3" or 4" bristle paint brush, simply apply a first thin coat over the entire crown, wait a few minutes for a tacky film to form, then brush a second heavier coat on. It cures completely within 2-4 hours! Each 2 gallon container will cover approximately 80 sq ft. CrownCoat can be custom colored using standard mortar dye. 15 Year Warranty