What is the permeability of the Poly-Flex liners?
Poly-Flex liners have a pseudo coefficient of permeability in the order of 10-13 cm/sec vs. compacted clay at 10-7cm/sec • What is the moisture vapor transmission rate (MVTR) of the Poly-Flex liners? The permeability of Poly-Flex liners is expressed as the Moisture Vapor Transmission Rate (MVTR) as measured by the ASTM D E96 test method. The property is expressed in grams/unit area/day. Please refer to inherent properties of polyethylene liners located in Material Specifications. • What are the advantages of Poly-Flex textured liners? Our blown-film textured liners have smooth edges and are covered by U.S. Patent Nos. 5,763,047 and 5,804,112. The blown-film texturing provides increased friction angles for higher stability on steep slope applications. Additionally, the smooth edges result in easier, more cost-effective, more consistent, and better welding. • What is the minimum degree of roughness (texturing) a textured liner should have? The minimum industry standard specification GRI
Poly-Flex liners have a pseudo coefficient of permeability in the order of 10-13 cm/sec vs. compacted clay at 10-7cm/sec • What is the moisture vapor transmission rate (MVTR) of the Poly-Flex liners? The permeability of Poly-Flex liners is expressed as the Moisture Vapor Transmission Rate (MVTR) as measured by the ASTM D E96 test method. The property is expressed in grams/unit area/day. Please refer to inherent properties of polyethylene liners located in Material Specifications. • What are the advantages of Poly-Flex smooth edge textured liners? Our blown-film textured liners have smooth edges and are covered by U.S. Patent Nos. 5,763,047 and 5,804,112. The smooth edges result in easier, more cost-effective, more consistent, and better welding. • What is the minimum degree of roughness (texturing) a textured liner should have? The minimum industry standard specification GRI GM13 and GRI GM17, require a minimum Asperity Height of 10 mils for textured HDPE and textured LLDPE geomembrane
