{"id":161304,"date":"2020-11-04T16:09:47","date_gmt":"2020-11-04T08:09:47","guid":{"rendered":"http:\/\/facfox.com\/?post_type=kb&#038;p=161304"},"modified":"2023-08-10T11:30:27","modified_gmt":"2023-08-10T03:30:27","slug":"comparison-between-tpu-tpc-tpa-and-soft-pla","status":"publish","type":"kb","link":"https:\/\/facfox.com\/docs\/kb\/comparison-between-tpu-tpc-tpa-and-soft-pla","title":{"rendered":"Comparison Between TPU, TPC, TPA, and Soft PLA"},"content":{"rendered":"<p>More and more, it seems that customization is driving the world. Creating products that fit the customer\u2019s expectations is the need of the hour. 3D printing is a major factor in this, bringing customized solutions to an entirely new level. Just take a look at our articles on 3D printed fashion and 3D printed prosthetic arms, two examples of applications where 3D printing really shines.<\/p>\n<p>When it comes to flexible and elastic applications, rubber is the ideal choice. But <a href=\"https:\/\/facfox.com\/kb\/is-rubber-3d-printing-possible-and-do-we-have-alternatives\" target=\"_blank\" rel=\"noopener noreferrer\">is rubber 3D printable<\/a>? The short answer is no. Hence, we look for alternative materials that are similar to rubber but can be 3D printed.<\/p>\n<p>From the above chart, we see that elastomers and polymers fall into the category of flexible materials. Combining the advantages of thermoplastics and elastomers, we, therefore, arrive at a new 3D printable class of materials called thermoplastic elastomers (TPEs).<\/p>\n<p>In this article, we\u2019ll look at a few different types of TPE as well as another type of flexible filament called soft PLA. Hopefully, through reading about these different materials, you can get a better idea of which is best for your needs!<\/p>\n<figure id=\"attachment_161257\" aria-describedby=\"caption-attachment-161257\" style=\"width: 570px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" class=\"size-full wp-image-161257\" src=\"https:\/\/facfox.com\/wp-content\/uploads\/2020\/11\/Inconel-718-2.jpg\" alt=\"\" width=\"570\" height=\"275\" \/><figcaption id=\"caption-attachment-161257\" class=\"wp-caption-text\">Young&#8217;s modulus can give a general indication of a material&#8217;s elasticity (Source: virginia.edu)<\/figcaption><\/figure>\n<h2 class=\"headline headline--xxl\">Overviews of TPEs<\/h2>\n<p><a href=\"https:\/\/all3dp.com\/2\/tpe-filament-explained-and-compared\/\" target=\"_blank\" rel=\"noopener noreferrer\">Thermoplastic elastomers (TPEs)<\/a> are polymers that exhibit elasticity similar to that of a cross-linked rubber. The degree of elasticity in the material depends on the type of TPE and the chemical structure of the grade. In addition, this grade of elastomers come with the processing advantages of thermoplastics, which is good for 3D printing!<\/p>\n<p>If you search for <a href=\"https:\/\/www.amazon.com\/s?k=TPE+filament&amp;tag=all3dp0c-20\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">TPE filaments<\/a>, you may become confused and a little annoyed at the options that appear. That\u2019s because TPE is a wide category of materials, which includes several other types, such as TPU. We\u2019ll see more of that very shortly.<\/p>\n<p>It\u2019s also important to note that not all varieties of flexible filament will be marketed as TPE, a subtype of TPE, or under any other recognizable material classification. Nevertheless, most will belong to one of the categories presented in this article.<\/p>\n<figure id=\"attachment_161309\" aria-describedby=\"caption-attachment-161309\" style=\"width: 1000px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"size-full wp-image-161309\" src=\"https:\/\/facfox.com\/wp-content\/uploads\/2020\/11\/classification-of-tpe-grades-acc.jpg\" alt=\"\" width=\"1000\" height=\"356\" \/><figcaption id=\"caption-attachment-161309\" class=\"wp-caption-text\">Classification of TPE grades according to their Shore hardness values (Source: smooth-on.com)<\/figcaption><\/figure>\n<div id=\"overviews-of-tpes\" class=\"section\">\n<div class=\"rich-text\">\n<h3><strong>Features of TPE<\/strong><\/h3>\n<ul>\n<li>Flexible and soft<\/li>\n<li>Excellent fatigue resistance<\/li>\n<li>Good electrical properties<\/li>\n<li>Excellent vibration damping<\/li>\n<li>High impact strength<\/li>\n<li>Excellent resistance to chemicals and weathering<\/li>\n<li>Good tear and abrasion resistance<\/li>\n<li>Recyclable<\/li>\n<li>Resistance to low and high temperatures (-30 to +140 \u00b0C)<\/li>\n<li>Good shock absorption<\/li>\n<\/ul>\n<h3><strong>3D Printing Prerequisites<\/strong><\/h3>\n<ul>\n<li>Extruder temperature: 210\u2013260 \u00baC (varies)<\/li>\n<li>Bed temperature: Unheated\u2013110 \u00baC (varies)<\/li>\n<li>Print speed: 5\u201330 mm\/s (keep it low, especially at the beginning)<\/li>\n<li>Bed adhesion: painter\u2019s tape, glue stick, or hairspray recommended<\/li>\n<li>Extruder system: direct drive recommended<\/li>\n<li>Cooling fan: recommended<\/li>\n<\/ul>\n<h3><strong>Challenges<\/strong><\/h3>\n<ul>\n<li>TPEs have the problem of being poorly handled by extruders owing to their softness.<\/li>\n<li>As TPEs are hygroscopic, they absorb moisture. As a result, prints will pop up and sizzle if filament isn\u2019t stored properly.<\/li>\n<li>Remember that TPE is particularly sensitive to quick movements. Sometimes the filament might buckle when pushed through the extruder.<\/li>\n<\/ul>\n<h3><strong>Classifications<\/strong><\/h3>\n<p>TPE can be classified into six categories based on chemical structure. They\u2019re also differentiated based on <a href=\"https:\/\/facfox.com\/kb\/durometer-shore-hardness-scale\" target=\"_blank\" rel=\"noopener noreferrer\">Shore hardness values<\/a>. Here, we\u2019ll discuss the different 3D printable grades of TPE:<\/p>\n<ul>\n<li>Thermoplastic polyurethane (TPU)<\/li>\n<li>Thermoplastic co-polyester (TPC)<\/li>\n<li>Thermoplastic polyamide (TPA)<\/li>\n<\/ul>\n<p><strong>Let\u2019s look a little closer at each of these types in the following.<\/strong><\/p>\n<\/div>\n<\/div>\n<div id=\"tpu\" class=\"section\">\n<div class=\"section u-space-s\">\n<div class=\"ad-container ad-container--horizontal ad-container--loaded\">\n<h2 class=\"headline headline--xxl\">TPU<\/h2>\n<figure id=\"attachment_161308\" aria-describedby=\"caption-attachment-161308\" style=\"width: 1000px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"size-full wp-image-161308\" src=\"https:\/\/facfox.com\/wp-content\/uploads\/2020\/11\/phone-cases-made-of-tpu-all3dp-1.jpg\" alt=\"\" width=\"1000\" height=\"666\" \/><figcaption id=\"caption-attachment-161308\" class=\"wp-caption-text\">Phone cases made of TPU<\/figcaption><\/figure>\n<p>Thermoplastic polyurethane (TPU), is the most common type of TPE used in 3D printing. Compared to other flexible filaments, it exhibits greater rigidity, allowing it to extrude more easily. It also has decent strength and high durability.<\/p>\n<p><strong>Features<\/strong><\/p>\n<ul>\n<li>High elastic range (typically ranges from 600\u2013700%)<\/li>\n<li>Shore hardness between 60A and 55D<\/li>\n<li>Excellent printability<\/li>\n<li>Semi-transparent<\/li>\n<li>Better chemical resistance to oils and greases<\/li>\n<li>High abrasion resistance<\/li>\n<\/ul>\n<p><strong>3D Printing Prerequisites<\/strong><\/p>\n<ul>\n<li>Extruder temperature: 210\u2013230 \u00baC<\/li>\n<li>Bed temperature: Unheated\u201360 \u00baC<\/li>\n<li>Print speed: 5\u201330 mm\/s<\/li>\n<li>Bed adhesion: Kapton\u2019s or painter\u2019s tape<\/li>\n<li>Extruder system: direct drive recommended<\/li>\n<li>Cooling fan: not recommended for the first layers<\/li>\n<\/ul>\n<p><strong>Challenges<\/strong><\/p>\n<ul>\n<li>If the temperature is too high, <a href=\"https:\/\/facfox.com\/kb\/3-easy-ways-to-prevent-petg-stringing\" target=\"_blank\" rel=\"noopener noreferrer\">stringing<\/a> can occur.<\/li>\n<li>If the temperature is too low, layer adhesion will be poor.<\/li>\n<li>Resistance to UV light is poor.<\/li>\n<\/ul>\n<p><strong>Industrial Applications<\/strong><\/p>\n<ul>\n<li>Shoe insoles<\/li>\n<li>Industrial belts<\/li>\n<li>Ski boots<\/li>\n<\/ul>\n<h2 class=\"headline headline--xxl\">TPC<\/h2>\n<figure id=\"attachment_161307\" aria-describedby=\"caption-attachment-161307\" style=\"width: 1000px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-161307\" src=\"https:\/\/facfox.com\/wp-content\/uploads\/2020\/11\/a-part-made-of-tpc-3dxtech-19022.jpg\" alt=\"\" width=\"1000\" height=\"666\" \/><figcaption id=\"caption-attachment-161307\" class=\"wp-caption-text\">A part made of TPC<\/figcaption><\/figure>\n<p>Thermoplastic copolyester (TPC) are copolyether esters with alternating, random-length sequences of either long-chain or short-chain glycols. They have both hard and soft segments. Hard segments are typically short-chain ester units whereas soft segments are usually aliphatic polyethers and polyester glycols.<\/p>\n<p>TPC is considered to be an engineering-grade material, which might explain why it doesn\u2019t appear as much in the hobbyist 3D printing world.<\/p>\n<p><strong>Features<\/strong><\/p>\n<ul>\n<li>Low density<\/li>\n<li>Elasticity in the range of 350\u2013530%<\/li>\n<li>Shore hardness between 40 and 72D<\/li>\n<li>Good chemical resistance<\/li>\n<li>High strength<\/li>\n<li>Good thermal stability<\/li>\n<li>High-temperature resistance<\/li>\n<\/ul>\n<p><strong>3D Printing Prerequisites<\/strong><\/p>\n<ul>\n<li>Extruder temperature: 220\u2013260 \u00baC<\/li>\n<li>Bed temperature: 90\u2013110 \u00baC<\/li>\n<li>Print speed: 5\u201330 mm\/s<\/li>\n<\/ul>\n<p><strong>Challenges<\/strong><\/p>\n<ul>\n<li>Comparatively, TPC presents less elongation at break. It can\u2019t be used for highly flexible applications.<\/li>\n<\/ul>\n<p><strong>Industrial Applications<\/strong><\/p>\n<ul>\n<li>Bellows<\/li>\n<li>Self-expandable polymer stents<\/li>\n<\/ul>\n<h2 class=\"headline headline--xxl\">TPA<\/h2>\n<figure id=\"attachment_161306\" aria-describedby=\"caption-attachment-161306\" style=\"width: 1000px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-161306\" src=\"https:\/\/facfox.com\/wp-content\/uploads\/2020\/11\/a-huge-3d-printed-golf-ball-itwo.jpg\" alt=\"\" width=\"1000\" height=\"826\" \/><figcaption id=\"caption-attachment-161306\" class=\"wp-caption-text\">A (huge) 3D printed golf ball<\/figcaption><\/figure>\n<p>Thermoplastic polyamide (TPA) is a chemical co-polymer of TPE and highly flexible nylon. The result is a combination of a smooth, lustrous texture, coming from nylon, and the flexibility of TPE.<\/p>\n<p><strong>Features<\/strong><\/p>\n<ul>\n<li>High flexibility<\/li>\n<li>Elasticity in the range of 370\u2013497%<\/li>\n<li>Shore hardness between 75 and 63A<\/li>\n<li>Exceptionally durable<\/li>\n<li>Good printability<\/li>\n<li>Good heat resistance<\/li>\n<li>Good layer adhesion<\/li>\n<\/ul>\n<p><strong>3D Printing Prerequisites<\/strong><\/p>\n<ul>\n<li>Extruder temperature: 220\u2013230 \u00baC<\/li>\n<li>Bed temperature: 30\u201360 \u00baC<\/li>\n<li>Print speed: 5\u201330 mm\/s<\/li>\n<li>Bed adhesion: PVA-based recommended<\/li>\n<li>Extruder system: direct drive or Bowden<\/li>\n<\/ul>\n<p><strong>Challenges<\/strong><\/p>\n<ul>\n<li>TPAs absorb moisture and, hence, should be stored in dry places.<\/li>\n<li>Warping is not uncommon.<\/li>\n<\/ul>\n<p><strong>Industrial Applications<\/strong><\/p>\n<ul>\n<li>Winter sports, especially ski equipment<\/li>\n<li>Golf balls<\/li>\n<li>Medical products, such as <a href=\"https:\/\/www.revolvy.com\/page\/Polyether-block-amide\" target=\"_blank\" rel=\"noopener noreferrer\">catheters<\/a><\/li>\n<\/ul>\n<h2 class=\"headline headline--xxl\">Soft PLA<\/h2>\n<figure id=\"attachment_161305\" aria-describedby=\"caption-attachment-161305\" style=\"width: 1000px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-161305 size-full\" src=\"https:\/\/facfox.com\/wp-content\/uploads\/2020\/11\/parts-3d-printed-using-soft-pla.jpg\" alt=\"\" width=\"1000\" height=\"669\" \/><figcaption id=\"caption-attachment-161305\" class=\"wp-caption-text\">Parts 3D printed using soft PLA<\/figcaption><\/figure>\n<p>Soft PLA is a generic term applied to PLA blends that are made to be more flexible. In terms of its performance, some refer to it as \u201ctough rubber\u201d.<\/p>\n<p>Compared to other flexible materials, it is known for its strength and durability. Printing it is similar to printing standard PLA, except that one should use a slower print speed and a higher bed temperature.<\/p>\n<p><strong>Features<\/strong><\/p>\n<ul>\n<li>Biodegradable<\/li>\n<li>Shore hardness between 90 and 92A<\/li>\n<li>High strength<\/li>\n<li>Good durability<\/li>\n<\/ul>\n<p><strong>3D Printing Prerequisites<\/strong><\/p>\n<ul>\n<li>Extruder temperature: 220\u2013235 \u00baC<\/li>\n<li>Bed temperature: 100 \u00baC<\/li>\n<li>Print speed: 10\u201330 mm\/s<\/li>\n<li>Extruder system: direct drive or Bowden<\/li>\n<\/ul>\n<p><strong>Challenges<\/strong><\/p>\n<ul>\n<li>Due to its softness, there can be problems during loading the filament.<\/li>\n<\/ul>\n<p><strong>Industrial Applications<\/strong><\/p>\n<ul>\n<li>Stoppers<\/li>\n<li>Springs<\/li>\n<li>Belts<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<\/div>\n<p>Source: <a href=\"https:\/\/all3dp.com\/2\/flexible-3d-printing-filament-which-should-you-chose\/\">https:\/\/all3dp.com\/2\/flexible-3d-printing-filament-which-should-you-chose\/<\/a><\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>More and more, it seems that customization is driving the world. Creating products that fit the customer\u2019s expectations is the need of the hour. 3D printing is a major factor in this, bringing customized solutions to an entirely new level. Just take a look at our articles on 3D printed fashion and 3D printed prosthetic [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":161330,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"kbtopic":[122],"kbtag":[349,61,287,350,351,207,208],"class_list":["post-161304","kb","type-kb","status-publish","has-post-thumbnail","hentry","kbtopic-mtl","kbtag-elastomer","kbtag-material","kbtag-pla","kbtag-tpa","kbtag-tpc","kbtag-tpe","kbtag-tpu"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.1 (Yoast SEO v27.1.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Comparison Between TPU, TPC, TPA, and Soft PLA - FacFox Docs<\/title>\n<meta name=\"description\" content=\"Rubber is not 3D printable. 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