Heat-sealed (welded) Layflat PCA Ducting is designed for the demanding positive pressure applications of the airline industry. The fabric’s unique construction provides flexibility and high resistance to external abrasion. The spiral construction features heavy-duty, military specification wearstrip that provides protection for the entire duct. As a result, the ducting experiences reduced fatigue and a longer service life. An extended inner liner and elastic seals at connection points minimize air loss. The ducting has excellent UV stabilization for rigorous outdoor use, mold and mildew inhibitors.