High-density\npolyethylene (HDPE) liners are among the best product solutions for many applications\nthat require an impermeability layer. But even among similar applications, the\ncore project requirements can differ. Some applications call for greater\ndurability, while others demand even lower permeability. Fortunately, some\nproduct attributes can be modified by changing the thickness of the HDPE liner.\n<\/p>\n\n\n\n
The thickness of HDPE liners can range from 30 to 120 mil. Features such as permeability, strength, weight, roll length, flexibility, and cost can all be affected by the liner\u2019s thickness. The proper mil thickness should be selected during the planning stage of any project, depending on the stresses that will be experienced upon the liner (1<\/em>). While 40 mil thickness liner is the most commonly used option, other options are preferred under certain conditions. <\/p>\n\n\n\n In\nthis article, we will provide an overview of 60 mil HDPE liners and explore applications\nthese liners are well-suited to tackle. <\/p>\n\n\n\n Most\nHDPE liners will retain their chemical properties regardless of their thickness.\nIn other words, 40 and 60 mil HDPE liners demonstrate equal UV and corrosion\nresistance. However, there are some aspects of the liner that will change as\nthe thickness increases such as overall strength and puncture resistance. A\nliner\u2019s permeability is also proportional to its thickness. Therefore, a 60 mil\nHDPE liner will be less permeable than a 40 mil liner\u2014about 50% less permeable,\nin fact. <\/p>\n\n\n\n A\ndesigner can count on a thicker liner to endure more physical damage. The\nliner\u2019s increased thickness and strength offers improved weathering resistance,\nmaking it better suited for exposed applications.<\/p>\n\n\n\n There\nare some drawbacks to a thicker liner though. For instance, a 60 mil HDPE liner\nwill be heavier and more expensive to transport and install than a 40 mil\nliner. A thicker liner will also have a shorter roll length, which necessitates\na greater number of seams during installation. While the typical use case will\nfind a 40 mil liner sufficient, regulatory requirement is the most common\nreason to upgrade a liner\u2019s thickness to 60 mil.<\/p>\n\n\n\n Some\nprojects will fall under rules governed by regulatory bodies such as the EPA.\nIn these situations, the regulations will dictate the minimum thickness of the\nHDPE liner. For landfill containment of non-hazardous waste, for example, the\nEPA requires a minimum average thickness of 60 mil to \u201censure that the liner\nmaterial will withstand the stress of construction and the weight load of the\nwaste\u2026\u201d (Environmental Protection Agency, 1999). These requirements, in\nconjunction with proper construction and quality control, were set to help\nreduce the potential for tearing or puncturing.<\/p>\n\n\n\n Engineers\nwill also typically call on a 60 mil HDPE liner \u2013 or thicker \u2013 for applications requiring greater liner\nstrength or lower permeability. Increasing the liner thickness can happen if\nthe project designers calculate a thinner liner is not able to withstand the\nregion\u2019s 100-year weather event. Thicker HDPE liners can also endure greater\nphysical damage, making it better suited for regions with seismic activity. In this article, we will provide an overview of 60 mil HDPE liners and explore applications these liners are well-suited to tackle. <\/p>\n","protected":false},"author":1,"featured_media":5199,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"categories":[325],"tags":[],"class_list":["post-5890","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-geomembrane"],"acf":[],"yoast_head":"\nTypical\nproperties of a 60 mil high-density polyethylene liner<\/strong><\/h2>\n\n\n\n
The\nbest applications of a 60 mil HDPE liner<\/strong><\/h2>\n\n\n\n
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