Curlex High Velocity 8' x 50' silt sock finder It is recommended to add It is recommended to add the Chromalox Heat Cable #30 with 90W of heat to protect from freezing temperatures Geotex 1201 is a nonwoven geotextile fabric that is made from high quality polypropylene staple fibers that is needle punched to form a dimensionally stable fiber network The Curlex High Velocity blanket comes from seed free Great Lakes Aspen Excelsior Fibers designed to provide extended protection for grass seed and topsoil from wind and water erosion for approximately 36+ months while simultaneously promoting ideal growing conditions on steep