Materials: Polyester fiber. Uses and Features: This product is specially designed for wastewater treatment plants as sludge dewatering mesh belt. It enjoys the features of air and water permeation, while not allowing the sludge. Due to its unique structure, the sludge will get easily off the belt after filtration. This sludge dewatering belt is especially making for sludge dewarting. The sludge dewatering belt is easy cleaning and long service life.