X-PRESS Seal 200 is a high quality, certified, 2# spray foam blend. This foam can cover 4000-4500 board feet when applied at the recommended conditions! It creates a smooth, firm foam that seals cracks, crevices, and voids where air loss and infiltration are most common creating an air-tight, moisture-resistant barrier in any structure. This results in a quieter, more energy-efficient, and comfortable home or building. A closed-cell content of 96% or more classifies the X-PRESS Seal 200 as a Class 1 ignition barrier allowing it to be sprayed in attics or crawl spaces without an addition ignition barrier coating!