GEO 3600/3600W is a woven geotextile made of 100 % high-tenacity polypropylene yarns. GEO 3600/3600W resists ultraviolet and biological deterioration, rotting, naturally encountered basics and acids. Polypropylene is stable within a pH range of 2 to 13. GEO 3600/3600W meets the following M.A.R.V. values except where noted. Click here for Product Data Sheet.