GEO 230CW is a woven filtration geotextile made of 10 % high-tenacity polypropylene yarns. It is a "combination" product made of monofilament yarns in the machine direction and fibrillated yarns in the cross direction. GEO 230CW resists ultraviolet and biological deterioration, rotting, naturally encountered basics and acids. Polypropylene is stable within a pH range of 2 to 13. GEO 230CW meets the following M.A.R.V. values: Click here for Product Data Sheet.