{"id":1438,"date":"2014-03-03T23:23:55","date_gmt":"2014-03-03T23:23:55","guid":{"rendered":"https:\/\/permabond.com\/adhesives-potting-electronics\/"},"modified":"2025-02-11T22:47:14","modified_gmt":"2025-02-11T22:47:14","slug":"adhesives-potting-electronics","status":"publish","type":"post","link":"https:\/\/permabond.com\/de\/adhesives-potting-electronics\/","title":{"rendered":"Adhesives for Potting Electronics"},"content":{"rendered":"<h4>WHAT IS POTTING?<\/h4>\n<p>Potting is essentially filling a \u201cpot\u201d with adhesive (or a potting compound). When potting electronics, the components to be potted are in a housing or recess which is then filled with adhesive.<\/p>\n<h4>WHY POT?<\/h4>\n<p>Electronic circuit boards comprise many sensitive small components such as microchips, resistors, transistors and diodes. These often require protection against moisture (which can cause short circuits), chemicals (which can corrode or attack components), thermal shock, vibration, or impact (which can cause components to become detached). In many cases, potting electronics helps make spying and copying circuitry difficult for competitors or helps make smart chips and card readers harder for criminals to tamper with.<\/p>\n<h4>TYPES OF ADHESIVE USED<\/h4>\n<p>For potting applications, low viscosity adhesives are generally preferred. They allow better fill around electronic components and reduce the likelihood of air bubble entrapment. <a href=\"https:\/\/permabond.com\/products\/epoxies-two-part-epoxy-adhesives\/\" target=\"_blank\" rel=\"noopener\">Two-part epoxies<\/a> and <a href=\"https:\/\/permabond.com\/products\/flexible-adhesives\/\" target=\"_blank\" rel=\"noopener\">modified epoxies<\/a> are a popular choice, as are <a href=\"https:\/\/permabond.com\/products\/polyurethane-adhesives\/\" target=\"_blank\" rel=\"noopener\">polyurethane adhesives<\/a> and silicones. <a href=\"https:\/\/permabond.com\/products\/uv-glue-uv-adhesive\/\" target=\"_blank\" rel=\"noopener\">UV adhesives <\/a>are common as they offer a quick cure and don\u2019t require mixing; however, shadow areas and limited depth cure mean they often aren\u2019t suitable. There are <a href=\"https:\/\/permabond.com\/products\/uv-glue-uv-adhesive\/\" target=\"_blank\" rel=\"noopener\">UV adhesives<\/a> available with a secondary cure method that can assist in full cure in shadow areas.<\/p>\n<h4>CONSIDERATIONS<\/h4>\n<p>There are some important points to consider when selecting an adhesive for potting:<\/p>\n<ul>\n<li>The volume of potting receptacle \u2013 if a large volume needs to be filled, be mindful of possible exotherm of the mixed adhesive during curing \u2013 if this is the case, opt for a slow curing potting adhesive which is less likely to become excessively hot during cure.<\/li>\n<li>Viscosity and flow characteristics of the potting adhesive \u2013 will it flow sufficiently to coat tiny intricate components? The correct viscosity can prevent air entrapment. Do you need to degas (apply a vacuum) to draw out air bubbles?<\/li>\n<li>How quickly do you need the adhesive to cure?<\/li>\n<li>What is the substrate material of the potting receptacle? You need to ensure good adhesion to the edges.<\/li>\n<li>Application process \u2013 are you looking to automate the process or apply manually? Is it possible to incorporate a two-part product that requires mixing into your production process?<\/li>\n<li>Does the adhesive need to be opaque or a certain color to ensure security against spying\/copying when potting electronics?<\/li>\n<li>Shore Hardness of the adhesive \u2013 you may require a particularly hard adhesive to reduce the risk of tampering or a soft adhesive that will put less stress on delicate components if there is any thermal expansion and contraction.<\/li>\n<li>Cost \u2013 The lowest cost adhesive isn&#8217;t always the cheapest option. Low cost products may appear to do the job but can give future problems such as poor durability and develop leak paths due to shrinkage or low adhesion strength to the \u201cpot.\u201d<\/li>\n<\/ul>\n<h4>ADHESIVE REQUIREMENTS<\/h4>\n<p>Here are some of the typical performance requirements of a potting adhesive for potting electronics:<\/p>\n<ul>\n<li>Good resistance to moisture and chemicals<\/li>\n<li>Low-outgassing and low-shrinkage<\/li>\n<li>Non-corrosive formulation<\/li>\n<li>Good resistance to thermal shock, impact, and vibration<\/li>\n<li>Should be electrically insulating and thermally conductive<\/li>\n<li>Compliance with RoHS and REACH<\/li>\n<li>Specific approvals such as UL94 V-0 flame retardancy<\/li>\n<\/ul>\n<p>If you have a potting application you would like to discuss with a technical adviser or would like to receive further information, please <a href=\"https:\/\/permabond.com\/contact-us\/\" target=\"_blank\" rel=\"noopener\">contact<\/a> Permabond.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>WHAT IS POTTING? Potting is essentially filling a \u201cpot\u201d with adhesive (or a potting compound). When potting electronics, the components to be potted are in a housing or recess which is then filled with adhesive. WHY POT? Electronic circuit boards comprise many sensitive small components such as microchips, resistors, transistors and diodes. These often require [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":11855,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[624,622],"tags":[42,83,84,78],"class_list":["post-1438","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-electronics-adhesives","category-industry-applications","tag-adhesives","tag-electronics","tag-encapsulation","tag-potting"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.3 (Yoast SEO v27.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Potting Electronics Adhesives | Potting Adhesive - Permabond<\/title>\n<meta name=\"description\" content=\"When potting electronics, the components to be potted are in a housing or recess which is then filled with adhesive.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/permabond.com\/de\/adhesives-potting-electronics\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Adhesives for Potting Electronics\" \/>\n<meta property=\"og:description\" content=\"When potting electronics, the components to be potted are in a housing or recess which is then filled with adhesive.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/permabond.com\/de\/adhesives-potting-electronics\/\" \/>\n<meta property=\"og:site_name\" content=\"Permabond\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/permabondEA\/\" \/>\n<meta property=\"article:published_time\" content=\"2014-03-03T23:23:55+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-02-11T22:47:14+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/permabond.com\/wp-content\/uploads\/2022\/11\/Permabond-Default-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"450\" \/>\n\t<meta property=\"og:image:height\" content=\"250\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Laurie Gibbons\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@PermabondEA\" \/>\n<meta name=\"twitter:site\" content=\"@PermabondEA\" \/>\n<meta name=\"twitter:label1\" content=\"Verfasst von\" \/>\n\t<meta name=\"twitter:data1\" content=\"Laurie Gibbons\" \/>\n\t<meta name=\"twitter:label2\" content=\"Gesch\u00e4tzte Lesezeit\" \/>\n\t<meta name=\"twitter:data2\" content=\"3\u00a0Minuten\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Potting Electronics Adhesives | Potting Adhesive - 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