... depend on good alkali resistance of polyamide material.AdvantageOur sludge dewatering fabric have a character of good water and gas permeability, but ... , it's specialized for sludge dewatering and waste water treatment. mud tend to peel off by our fabric, so it's easy ... the special heriingbone structure of our fabric.we always use clipper joint for our sludge dewatering fabric, it's easy to install in ...