Installation Instructions FloorMuffler® Ultra Seal i, Make sure the sub floor is structurally sound, level and is free of dust and debris. Check for protruding nails and/or defects in the sub floor. If installing over concrete, the can crate must be dry with moisture ‘emission rates that do not exceed 3/bs. per 1000 squats ghost per 24 hours as measured by the Anhydrous Calcium Chloride Test.
