{"id":2579,"date":"2021-02-22T09:31:42","date_gmt":"2021-02-22T09:31:42","guid":{"rendered":"https:\/\/www.becgroup.com\/?p=2579"},"modified":"2024-09-03T14:40:11","modified_gmt":"2024-09-03T13:40:11","slug":"material-of-the-month-ldpe","status":"publish","type":"post","link":"https:\/\/www.becgroup.com\/news\/material-of-the-month-ldpe\/","title":{"rendered":"LOW-DENSITY POLYETHYLENE (LDPE)"},"content":{"rendered":"<h2><strong>LDPE \u2013 CHEAP PLASTIC HAS ITS PLACE<\/strong><\/h2>\n<p><strong>Low-density polyethylene<\/strong>\u00a0(<strong>LDPE<\/strong>) is our thermoplastic in the spotlight this month.<\/p>\n<p>LDPE is a thermoplastic made from the monomer ethylene, the first grade of polyethylene, originally produced in 1933 by Imperial Chemical Industries (ICI).<\/p>\n<p>As with all materials, the reasons why one material is selected for one product\u2019s manufacture, can be a negative outcome for another.\u00a0 For example: LDPE\u2019s flexibility could be either a pro or a con, depending on how it\u2019s finally intended for use.<\/p>\n<p>LDPE has its own characteristics, if you push it, it moves, it\u2019s fairly soft, has a good chemical resistance, is easy to mould and above all, it\u2019s cheap. So, is often used for commodity mouldings.<\/p>\n<p>Here at BEC, our <a href=\"https:\/\/www.becgroup.com\/what-we-do\/design\/product-design\/\">design<\/a> team carry out an incredibly thorough investigation at the start of every project. So, we go into the design for manufacture and material selection process, fully armed with information about how the end product or component is going to be used. How does it need to perform? Does it need to withstand any chemical, environmental or repetitive applications?<\/p>\n<p>We can then propose the most suitable materials, so the end product meets its requirements.<\/p>\n<p>Just like many others, LDPE sample swatches or mouldings can be supplied for evaluation and testing.\u00a0 And because material selection is such a critical part of the process, we keep a comprehensive range of materials for trialling. With two mould shops <a href=\"https:\/\/www.becgroup.com\/about\/\">on-site<\/a>, sample mouldings can usually be carried out quickly, speeding up the verification process.<\/p>\n<p><strong>Pros<\/strong><\/p>\n<ul>\n<li>Economic \u2013 it is a cheap plastic<\/li>\n<li>Low density<\/li>\n<li>It floats! (Specific gravity of LDPE is 0.9-0.95)<\/li>\n<li>Flexible with good impact resistance<\/li>\n<li>Ductile \u2013 if you push it, it moves<\/li>\n<li>Low working temperature range<\/li>\n<li>Good chemical resistance<\/li>\n<li>Commonly available<\/li>\n<li>Easy to mould<\/li>\n<li>Very easy to recycle and reuse, with its own recycling code #4.<\/li>\n<\/ul>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-2599 alignleft\" src=\"https:\/\/www.becgroup.com\/wp-content\/uploads\/2021\/02\/LDPE-1.jpg\" alt=\"\" width=\"226\" height=\"226\" srcset=\"https:\/\/www.becgroup.com\/wp-content\/uploads\/2021\/02\/LDPE-1.jpg 500w, https:\/\/www.becgroup.com\/wp-content\/uploads\/2021\/02\/LDPE-1-300x300.jpg 300w, https:\/\/www.becgroup.com\/wp-content\/uploads\/2021\/02\/LDPE-1-150x150.jpg 150w\" sizes=\"auto, (max-width: 226px) 100vw, 226px\" \/><\/p>\n<p><strong>Cons<\/strong><\/p>\n<ul>\n<li>Looks cheap<\/li>\n<li>LDPE has poor UV resistance properties, (additives are available to improve it!)<\/li>\n<li>Higher shrink rate can cause issues like distortion and shrinkage<\/li>\n<li>Self-tapping screws can strip the material<\/li>\n<li>Low mechanical strength<\/li>\n<li>Comparatively low melting temperature<\/li>\n<li>Soft \u2026 you wouldn\u2019t use it for a coat hook!<\/li>\n<\/ul>\n<p><strong>Not many people know\u2026 <\/strong><\/p>\n<p>Squeezy bottles are usually made from LDPE, they are soft, food grade and cheap!<\/p>\n<p><strong>We injection mould products using a whole myriad of plastics, for customers across multiple industry sectors and for multiple applications.<\/strong><\/p>\n<p><strong>With decades of <a href=\"https:\/\/www.becgroup.com\/what-we-do\/moulding\/plastic-injection-moulding\/\">plastic injection moulding<\/a> experience, we can assist with your next material selection.<\/strong><\/p>\n<p><strong>Give us a call on <a href=\"tel:01425613131\">01425 613131<\/a> or email <\/strong><a href=\"mailto:hello@becgroup.com\"><strong>hello@becgroup.com<\/strong><\/a><strong>.\u00a0 <\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Material of the Month: LDPE; the pros and cons for material selection&#8230;. <a href=\"https:\/\/www.becgroup.com\/news\/material-of-the-month-ldpe\/\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":2602,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[19,17],"tags":[],"class_list":["post-2579","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-material-of-the-month","category-news"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Low-density Polyethylene (LDPE)<\/title>\n<meta name=\"description\" content=\"LDPE is a thermoplastic made from the monomer ethylene. It could be considered during the material selection process with BEC.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.becgroup.com\/news\/material-of-the-month-ldpe\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Low-density Polyethylene (LDPE)\" \/>\n<meta property=\"og:description\" content=\"LDPE is a thermoplastic made from the monomer ethylene. 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It could be considered during the material selection process with BEC.","og_url":"https:\/\/www.becgroup.com\/news\/material-of-the-month-ldpe\/","og_site_name":"BEC Group","article_published_time":"2021-02-22T09:31:42+00:00","article_modified_time":"2024-09-03T13:40:11+00:00","og_image":[{"width":1100,"height":600,"url":"https:\/\/www.becgroup.com\/wp-content\/uploads\/2021\/02\/header-LDPE.jpg","type":"image\/jpeg"}],"author":"freestyle","twitter_card":"summary_large_image","twitter_creator":"@becgroup","twitter_site":"@becgroup","twitter_misc":{"Written by":"freestyle","Estimated reading time":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/www.becgroup.com\/news\/material-of-the-month-ldpe\/#article","isPartOf":{"@id":"https:\/\/www.becgroup.com\/news\/material-of-the-month-ldpe\/"},"author":{"name":"freestyle","@id":"https:\/\/www.becgroup.com\/#\/schema\/person\/b03fde01a03a22a50c883a48b9d1566a"},"headline":"LOW-DENSITY POLYETHYLENE (LDPE)","datePublished":"2021-02-22T09:31:42+00:00","dateModified":"2024-09-03T13:40:11+00:00","mainEntityOfPage":{"@id":"https:\/\/www.becgroup.com\/news\/material-of-the-month-ldpe\/"},"wordCount":420,"publisher":{"@id":"https:\/\/www.becgroup.com\/#organization"},"image":{"@id":"https:\/\/www.becgroup.com\/news\/material-of-the-month-ldpe\/#primaryimage"},"thumbnailUrl":"https:\/\/www.becgroup.com\/wp-content\/uploads\/2021\/02\/header-LDPE.jpg","articleSection":["Material of the month","News"],"inLanguage":"en-GB"},{"@type":"WebPage","@id":"https:\/\/www.becgroup.com\/news\/material-of-the-month-ldpe\/","url":"https:\/\/www.becgroup.com\/news\/material-of-the-month-ldpe\/","name":"Low-density Polyethylene (LDPE)","isPartOf":{"@id":"https:\/\/www.becgroup.com\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.becgroup.com\/news\/material-of-the-month-ldpe\/#primaryimage"},"image":{"@id":"https:\/\/www.becgroup.com\/news\/material-of-the-month-ldpe\/#primaryimage"},"thumbnailUrl":"https:\/\/www.becgroup.com\/wp-content\/uploads\/2021\/02\/header-LDPE.jpg","datePublished":"2021-02-22T09:31:42+00:00","dateModified":"2024-09-03T13:40:11+00:00","description":"LDPE is a thermoplastic made from the monomer ethylene. 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