Specifications: 1.needle punched geotextile 2.nonwoven geotextile 3.manufacturer 4.good ability in filtration, separation polyester nonwoven filter fabric Weight: 300gsm (250g/sq.yd.) Weave: satin Construction: 57x21. 2 / cm (warp x weft) Air permeability: 420-620 Lt/M2/S Finishing: heat set, scouring, calandering Color: raw white, white, yellow Trademark: Yan Standard: A Filter fabrics look a lot like felt and are good at aiding planar water flow. They are commonly used in asphalt pavement overlays, aggregate drains, and erosion control. The well-respected manufacturer of filter fabrics,suzhou top-science, offers 6 lines of non-woven filter fabrics ranging in weight from light to medium to heavy.The high permeability properties provide high water flow rates for excellent filtration properties. Application: Filtration of soils in drainage applications by retaining soil particles while allowing for the free flow of waterSeparation and stabilization in road and railway constructionPrevention of soil movement in erosion control measuresCushioning and protection in many containment projectsFeature: Can withstand construction installation stressesUV (Ultra Violet) StabilizedHigh Chemical ResistanceOptimum ElongationProduced from high quality fibers,filter fabrics are needle punched to form a strong fabric that retains its dimensional stability and is resistant to damage from construction stresses. top-science’s filter fabrics are available in varying strengths and thicknesses to ensure appropriate material selection for your project. polyester nonwoven filter fabric