Filter Cloth has excellent water flow rates and are used for filtration of soil fines. Geotextiles Filter Cloth are made from polypropylene fibres that are tangled together. Nonwoven geotextiles have been used in drainage applications including trench drains (also known as french drains), as a wrapping for perforated pipe, for erosion protection, for the separation of a roads sub base and base course, and combined with three-dimensional structures to create prefabricated drains. They are also commonly used with geomembranes to provide a protective cushion. Nonwoven Geotextiles Filter Cloth primary functions: filtration, separation, protection, and drainage.