{"id":15948,"date":"2021-01-14T10:11:29","date_gmt":"2021-01-14T09:11:29","guid":{"rendered":"https:\/\/www.rct-online.de\/magazin\/?p=15948"},"modified":"2026-01-23T16:34:04","modified_gmt":"2026-01-23T15:34:04","slug":"silicone-rubber-material-for-tubing-semi-finished-products-and-seals","status":"publish","type":"post","link":"https:\/\/www.rct-online.de\/magazin\/en\/silicone-rubber-material-for-tubing-semi-finished-products-and-seals\/","title":{"rendered":"Silicone Rubber \u2013 Material for Tubing, Semi-Finished Products, and Seals"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_73 ez-toc-wrap-center counter-hierarchy ez-toc-counter ez-toc-white ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.rct-online.de\/magazin\/en\/silicone-rubber-material-for-tubing-semi-finished-products-and-seals\/#What_Is_Silicone_Rubber\" title=\"What Is Silicone Rubber?\">What Is Silicone Rubber?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.rct-online.de\/magazin\/en\/silicone-rubber-material-for-tubing-semi-finished-products-and-seals\/#The_History_of_Polyorganosiloxanes\" title=\"The History of Polyorganosiloxanes\">The History of Polyorganosiloxanes<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.rct-online.de\/magazin\/en\/silicone-rubber-material-for-tubing-semi-finished-products-and-seals\/#Synthesis_of_Silicones\" title=\"Synthesis of Silicones\">Synthesis of Silicones<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.rct-online.de\/magazin\/en\/silicone-rubber-material-for-tubing-semi-finished-products-and-seals\/#Properties_of_Silicone_Rubber\" title=\"Properties of Silicone Rubber\">Properties of Silicone Rubber<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.rct-online.de\/magazin\/en\/silicone-rubber-material-for-tubing-semi-finished-products-and-seals\/#Processing_Methods\" title=\"Processing Methods\">Processing Methods<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.rct-online.de\/magazin\/en\/silicone-rubber-material-for-tubing-semi-finished-products-and-seals\/#Applications_for_Silicone_Rubber\" title=\"Applications for Silicone Rubber\">Applications for Silicone Rubber<\/a><\/li><\/ul><\/nav><\/div>\n<p style=\"text-align: justify;\"><strong>The material silicone rubber offers a wide range of excellent technical properties and is therefore used in many different applications. But what can this elastomer do\u2014the one found in clothing, shoes, baking accessories, prosthetics, medical devices, and cable sheathing? The following article takes a closer look at how silicone rubber is manufactured, its properties, its processing, and where it can be found.<\/strong><\/p>\n<h2><span class=\"ez-toc-section\" id=\"What_Is_Silicone_Rubber\"><\/span>What Is Silicone Rubber?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">The term silicone rubber is a collective name for a wide variety of elastomers. These elastomers are not purely organic compounds whose main molecular chains\u2014like those of natural rubber or other organic rubbers\u2014are built from carbon. Instead, they consist of silicone polymer chains with alternating oxygen and silicon atoms arranged in sequence, i.e., -Si-O-Si bonds (siloxane bonds). For this reason, they are also referred to as polyorganosiloxanes.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"The_History_of_Polyorganosiloxanes\"><\/span>The History of Polyorganosiloxanes<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">The French chemist Antoine Laurent de Lavoisier (1743\u20131793) discovered the element silicon (Si) in 1787. It is a constituent of rocks and many minerals and is the second most abundant chemical element in the Earth&#8217;s solid crust after oxygen. Together with oxygen, silicon forms the basis of polyorganosiloxanes.<\/p>\n<figure id=\"attachment_5980\" aria-describedby=\"caption-attachment-5980\" style=\"width: 347px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5980\" title=\"Excerpt from a Portrait of Antoine Laurent de Lavoisier (1788)\" src=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/Ausschnitt-eines-Portraets-von-Antoine-Laurent-de-Lavoisier-1788.jpg\" alt=\"Excerpt from a Portrait of Antoine Laurent de Lavoisier (1788)\" width=\"347\" height=\"400\" srcset=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/Ausschnitt-eines-Portraets-von-Antoine-Laurent-de-Lavoisier-1788.jpg 600w, https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/Ausschnitt-eines-Portraets-von-Antoine-Laurent-de-Lavoisier-1788-260x300.jpg 260w\" sizes=\"(max-width: 347px) 100vw, 347px\" \/><figcaption id=\"caption-attachment-5980\" class=\"wp-caption-text\"><center>Excerpt from a portrait of Antoine Laurent de Lavoisier (1788)<\/center><\/figcaption><\/figure>\n<p style=\"text-align: justify;\">After the discovery of silicon, its chemical investigation initially faded into the background. It was not until the beginning of the 20th century that silicon and its chemistry returned to the spotlight. During his professorship at University College Nottingham from 1897 to 1936, the English chemist Frederic Stanley Kipping (1863\u20131946) achieved the first synthesis of organic silicon compounds\u2014the basis of polyorganosiloxanes. He referred to these polyorganosiloxanes, which were partly oily, partly elastic, or even resin-like, as &#8220;silicon ketones.&#8221; However, he could not envisage any practical use for his discovery, and as a result, it was initially forgotten.<\/p>\n<p><center><a href=\"https:\/\/www.rct-online.de\/en\/tubes-hoses\/tubing-made-of-elastomers-soft-rubber\/silicone-tubing\/28685\/silicone-high-temperature-chemical-tubing\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-13868 size-full\" title=\"Silicone High-Temperature Chemical Tubing\" src=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2018\/08\/silikon-hochtemperatur-chemieschlauch-1.jpg\" alt=\"Silicone High-Temperature Chemical Tubing\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2018\/08\/silikon-hochtemperatur-chemieschlauch-1.jpg 300w, https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2018\/08\/silikon-hochtemperatur-chemieschlauch-1-150x150.jpg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a> <a href=\"https:\/\/www.rct-online.de\/en\/tubes-hoses\/protective-and-insulating-hoses\/28707\/silicone-insulating-tubing\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-5985 size-full\" title=\"Silicone Insulating Tubing\" src=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/silikon-isolierschlauch.jpg\" alt=\"Silicone Insulating Tubing\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/silikon-isolierschlauch.jpg 300w, https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/silikon-isolierschlauch-150x150.jpg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/center><\/p>\n<p style=\"text-align: justify;\">Only when industry began searching for alternatives to natural rubber in the late 1920s did Kipping&#8217;s work\u2014and other earlier research into silicon chemistry\u2014become interesting for industrial research. Researchers looked for a suitable starting material for silicon-based elastomers that could be produced profitably on an industrial scale. The breakthrough for future silicone production was achieved simultaneously by the German chemist Richard Gustav M\u00fcller (1903\u20131999) and the American Eugene George Rochow (1909\u20132002). Working independently, they developed the fundamental synthesis of chloromethylsilanes for silicone production. This became known in chemical history as the M\u00fcller\u2013Rochow synthesis.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Synthesis_of_Silicones\"><\/span>Synthesis of Silicones<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Like many other plastics (e.g., polyethylene terephthalate, PET), silicone rubber is also produced by polycondensation.<\/p>\n<p style=\"text-align: justify;\">Chloromethylsilanes are the starting point for silicone production. During hydrolysis, the chlorine atoms are replaced by hydroxyl groups:<\/p>\n<p style=\"text-align: center;\">(CH<sub>3<\/sub>)<sub>2<\/sub>SiCl<sub>2<\/sub> + 2 H<sub>2<\/sub>O \u2192 (CH<sub>3<\/sub>)<sub>2<\/sub>Si(OH)<sub>2<\/sub> + 2 HCl<\/p>\n<p style=\"text-align: justify;\">The silanols that form immediately condense, splitting off water and forming polymethylsiloxanes.<\/p>\n<p style=\"text-align: center;\">n (CH<sub>3<\/sub>)<sub>2<\/sub>Si(OH)<sub>2<\/sub> \u2192 [-O-Si(CH<sub>3<\/sub>)<sub>2<\/sub>-]<sub>n<\/sub> + n H<sub>2<\/sub>O<\/p>\n<p style=\"text-align: justify;\">The most important of these base polymers are poly(dimethylsiloxanes), poly(methylphenylsiloxanes), and poly(methylvinylsiloxanes). Depending on the vinyl, methyl, phenyl, or fluoroalkyl groups, the different silicone rubber types obtain their specific properties.<\/p>\n<p style=\"text-align: justify;\">The polymerization of the selected monomers proceeds in several steps.<\/p>\n<p style=\"text-align: justify;\">For example, dichlorodimethylsilane forms chain-like polymers via the intermediate dimethyldisilanol through condensation, i.e., by splitting off water. This process repeats continuously, resulting in linear, chain-like polymers.<\/p>\n<p><center><a href=\"https:\/\/www.rct-online.de\/en\/tubes-hoses\/tubing-made-of-elastomers-soft-rubber\/silicone-tubing\/28704\/silicone-high-temperature-chemical-pressure-tubing-with-fabric-insert\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-5988 size-full\" title=\"Silicone High-Temperature Chemical Pressure Tubing with Fabric Insert\" src=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/silikon-hochtemperatur-druck-chemieschlauch-mit-glasseideeinlage.jpg\" alt=\"Silicone High-Temperature Chemical Pressure Tubing with Fabric Insert\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/silikon-hochtemperatur-druck-chemieschlauch-mit-glasseideeinlage.jpg 300w, https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/silikon-hochtemperatur-druck-chemieschlauch-mit-glasseideeinlage-150x150.jpg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a> <a href=\"https:\/\/www.rct-online.de\/en\/tubes-hoses\/tubing-made-of-elastomers-soft-rubber\/silicone-tubing\/28691\/silicone-tubing-for-medical-engineering\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-5989 size-full\" title=\"Silicone Tubing for Medical Engineering\" src=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/silikonschlauch-fuer-die-medizintechnik.jpg\" alt=\"Silicone Tubing for Medical Engineering\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/silikonschlauch-fuer-die-medizintechnik.jpg 300w, https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/silikonschlauch-fuer-die-medizintechnik-150x150.jpg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/center><\/p>\n<p style=\"text-align: justify;\">If free hydroxyl groups are available as reaction partners in the polymer chain, the linear polymers continue to grow into two- and three-dimensional structures. In the synthesis approach, silanes such as chlorotrimethylsilane are also used as additives. Capping the reactive OH groups terminates the condensation process.<\/p>\n<p style=\"text-align: justify;\">If the consistency of certain silicone rubber products needs to be adjusted, plasticizers such as low-molecular silicones can be used. If finely dispersed silicon dioxide (&#8220;silica&#8221;) is added instead, it increases the strength and dimensional stability of the silicone rubber.<\/p>\n<figure id=\"attachment_5976\" aria-describedby=\"caption-attachment-5976\" style=\"width: 400px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5976\" title=\"Silicone Rubber Also Appears in Our Kitchen in the Form of Containers, Baking Molds, and Kitchen Utensils\" src=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/silikonkautschuk-kueche.jpg\" alt=\"Silicone Rubber Also Appears in Our Kitchen in the Form of Containers, Baking Molds, and Kitchen Utensils\" width=\"400\" height=\"267\" srcset=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/silikonkautschuk-kueche.jpg 600w, https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/silikonkautschuk-kueche-300x200.jpg 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><figcaption id=\"caption-attachment-5976\" class=\"wp-caption-text\"><center>Silicone rubber also appears in our kitchen in the form of containers, baking molds, and kitchen utensils<\/center><\/figcaption><\/figure>\n<p style=\"text-align: justify;\">Organic peroxides are used to crosslink the molecules into two- and three-dimensional networks to form the elastomer. At elevated temperatures, they decompose into highly reactive radicals and thus promote crosslinking of the polymer chains.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Properties_of_Silicone_Rubber\"><\/span>Properties of Silicone Rubber<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">Silicone rubber differs from other elastomers due to its unique technical properties, which result from its polymer structure. The mechanical and chemical properties can be strongly influenced by the type and amount of additives such as reinforcing substances and fillers.<\/p>\n<p style=\"text-align: justify;\">Because of the wide range of applications and the properties required in each case, the exact chemical composition of industrially available silicone rubbers is hardly known. However, this is not a problem for users. Each silicone rubber type offered is a proven specialty product for its specific intended application and provides the chemical and technical properties required for that purpose.<\/p>\n<p><center><a href=\"https:\/\/www.rct-online.de\/en\/seals-and-gaskets\/dairy-couplings-din-11851\/30659\/silicone-sealing-rings-for-dairy-couplings\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-5992 size-full\" title=\"Silicone Sealing Rings for Dairy Couplings\" src=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/silikon-milchrohrverschraubungsringe.jpg\" alt=\"Silicone Sealing Rings for Dairy Couplings\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/silikon-milchrohrverschraubungsringe.jpg 300w, https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/silikon-milchrohrverschraubungsringe-150x150.jpg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a> <a href=\"https:\/\/www.rct-online.de\/en\/closure-elements\/plugs\/plugs-made-of-elastomers\/30008\/high-pharm-stopper-made-of-silicone-for-the-food-processing-technology-and-pharmaceutical-engineering\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-5993 size-full\" title=\"High-Pharm Stopper made of Silicone for the Food Processing Technology and Pharmaceutical Engineering\" src=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/stopfen-aus-silikon-fuer-die-food-und-pharmatechnik.jpg\" alt=\"High-Pharm Stopper made of Silicone for the Food Processing Technology and Pharmaceutical Engineering\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/stopfen-aus-silikon-fuer-die-food-und-pharmatechnik.jpg 300w, https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/stopfen-aus-silikon-fuer-die-food-und-pharmatechnik-150x150.jpg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/center><br \/>\n<!-- GE\u00c4NDERT: \"all silicone rubber types\" \u2192 \"all types\" --><\/p>\n<p style=\"text-align: justify;\">In general, however, all types are chemically, mechanically, and thermally very stable elastomers. They offer good high- and low-temperature resistance from -100 \u00b0C to +300 \u00b0C, flexibility and elasticity that are nearly independent of temperature, and outstanding UV and weather resistance. In addition, they exhibit a long service life\u2014even under mechanically and chemically unfavorable conditions\u2014which makes <a href=\"https:\/\/www.rct-online.de\/en\/tubes-hoses\/tubing-made-of-elastomers-soft-rubber\/silicone-tubing\">silicone rubber<\/a> a material of choice for <a href=\"https:\/\/www.rct-online.de\/en\/tubes-hoses\/application-fields-for-tubings\/pump-tubing\">peristaltic pump hoses<\/a>, very good electrical insulating properties, maximum dimensional stability after vulcanization, and\u2014compared with other rubbers\u2014significantly higher gas permeability.<\/p>\n<blockquote>\n<p style=\"text-align: justify;\">They are also considered physiologically and toxicologically harmless, have exceptional purity, and are odorless and tasteless.<\/p>\n<\/blockquote>\n<h2><span class=\"ez-toc-section\" id=\"Processing_Methods\"><\/span>Processing Methods<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p style=\"text-align: justify;\">The methods used to process silicone rubber depend on the required mechanical, chemical, and physical properties and on whether liquid silicone rubber or solid silicone rubber is involved. The part geometry and the production quantity also play an important role. If large quantities with complex geometries and high product quality are to be produced, injection molding is ideally suited. It delivers largely post-processing-free vulcanizates in high dimensional accuracy in a fully automated process and thus enables shorter production cycles.<\/p>\n<p style=\"text-align: justify;\">In extrusion, the rubber is pressed through a shaping die and then vulcanized. The required pressure is generated by a conveying screw, where the starting material is homogenized, degassed, and compacted. This method is suitable for manufacturing continuous products, so-called &#8220;meter goods.&#8221; <a href=\"https:\/\/www.rct-online.de\/en\/tubes-hoses\">Hoses<\/a>, <a href=\"https:\/\/www.rct-online.de\/en\/semi-finished-products\/round-cords\">round cords<\/a>, profiles, and flat strips are produced using this process.<\/p>\n<figure id=\"attachment_5978\" aria-describedby=\"caption-attachment-5978\" style=\"width: 400px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5978\" title=\"Extruded, Colored Sealing Profiles\" src=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/dichtungsprofile.jpg\" alt=\"Extruded, Colored Sealing Profiles\" width=\"400\" height=\"267\" srcset=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/dichtungsprofile.jpg 600w, https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/dichtungsprofile-300x200.jpg 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><figcaption id=\"caption-attachment-5978\" class=\"wp-caption-text\"><center>Extruded, colored sealing profiles<\/center><\/figcaption><\/figure>\n<p><!-- GE\u00c4NDERT: \"solid silicone rubber is vulcanized\" \u2192 \"the solid material is vulcanized\" --><\/p>\n<p style=\"text-align: justify;\">In compression molding, the solid material is vulcanized under pressure and at high temperatures in predefined molds. The vulcanization time depends on the temperature of the starting materials, the mold temperature, and the thickness of the molded parts. The main methods\u2014compression molding and transfer molding\u2014are suitable for producing semi-finished products.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Applications_for_Silicone_Rubber\"><\/span>Applications for Silicone Rubber<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><!-- GE\u00c4NDERT: \"The range of applications for silicone rubber\" \u2192 \"The range of applications for this versatile elastomer\" --><\/p>\n<p style=\"text-align: justify;\">The range of applications for this versatile elastomer is broad due to its excellent properties.<\/p>\n<p style=\"text-align: justify;\">In hose technology, chemically largely inert silicone hoses\u2014so-called <a href=\"https:\/\/www.rct-online.de\/en\/tubes-hoses\/application-fields-for-tubings\/chemical-hoses\">chemical hoses<\/a>\u2014are manufactured from silicone rubber in particular. They are used to convey liquids in chemical laboratories, in the food industry, as well as in bio- and medical technology and in pharmaceutical applications. Because the material shows very high gas permeability compared with other plastic hoses\u2014especially for carbon dioxide (CO<sub>2<\/sub>)\u2014silicone hoses are generally unsuitable for conveying gases. However, they can be used for the targeted gassing of liquids. This physiologically harmless, thermally stable material is also used for peristaltic pump hoses, food hoses, and analytical hoses.<\/p>\n<p><center><a href=\"https:\/\/www.rct-online.de\/en\/adhesives-and-lubricants\/adhesives\/one-component-adhesives\/30366\/silicone-rubber-adhesive-small-scale-adhesion\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-5996 size-full\" title=\"Silicone Rubber Adhesive - small-scale adhesion\" src=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/kleber-fuer-silikon-kautschuk-kleinflaechen.jpg\" alt=\"Silicone Rubber Adhesive - small-scale adhesion\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/kleber-fuer-silikon-kautschuk-kleinflaechen.jpg 300w, https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/kleber-fuer-silikon-kautschuk-kleinflaechen-150x150.jpg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a> <a href=\"https:\/\/www.rct-online.de\/en\/semi-finished-products\/plates\/foam-rubber-sheets\/30222\/high-tech-foam-plate-made-of-silicone\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-5997 size-full\" title=\"High-Tech Foam Plate made of Silicone\" src=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/schaumstoff-platte-aus-silikon.jpg\" alt=\"High-Tech Foam Plate made of Silicone\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/schaumstoff-platte-aus-silikon.jpg 300w, https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/schaumstoff-platte-aus-silikon-150x150.jpg 150w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/center><br \/>\n<!-- GE\u00c4NDERT: \"Silicone rubber hoses are also found\" \u2192 \"These hoses are also found\" --><\/p>\n<p style=\"text-align: justify;\">These hoses are also found in engine technology, for example as turbocharger hoses. In addition, the material is used for seals, exhaust hangers, vibration dampers, and cable sheathing.<\/p>\n<p><!-- GE\u00c4NDERT: \"Silicone rubber is also used\" \u2192 \"The material is also used\" --><\/p>\n<p style=\"text-align: justify;\">The material is also used as thermostable electrical insulation and as an elastic sealing material, for example for O-rings and other flat gaskets. In the construction industry, silicone rubber serves not only as a sealant for filling joints but also as a coating compound for fabrics or for producing molding and potting compounds.<\/p>\n<figure id=\"attachment_5982\" aria-describedby=\"caption-attachment-5982\" style=\"width: 400px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-5982\" title=\"Typical Silicone Sealant Pressed Out of a Cartridge and Then Curing\" src=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/Typischer-Silikondichtstoff.jpg\" alt=\"Typical Silicone Sealant Pressed Out of a Cartridge and Then Curing\" width=\"400\" height=\"317\" srcset=\"https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/Typischer-Silikondichtstoff.jpg 600w, https:\/\/www.rct-online.de\/magazin\/wp-content\/uploads\/2021\/02\/Typischer-Silikondichtstoff-300x238.jpg 300w\" sizes=\"(max-width: 400px) 100vw, 400px\" \/><figcaption id=\"caption-attachment-5982\" class=\"wp-caption-text\">Typical silicone sealant pressed out of a cartridge and then curing<\/figcaption><\/figure>\n<p style=\"text-align: justify;\">In the medical and pharmaceutical industries, silicone rubber is used not only for hoses but also in ventilation bags, incubators, and other medical devices. Highly pure silicone rubber is used to manufacture cosmetic-surgery and other medical implants.<\/p>\n<p style=\"text-align: justify;\">Today, the elastomer has found its way into almost every area of everyday life\u2014in the form of colorful cake and ice-cream molds, erasers, menstrual cups, and prosthetics.<\/p>\n<hr \/>\n<pre><strong>Image Sources:<\/strong>\r\nFeatured image | \u00a9 bonnontawat \u2013 stock.adobe.com\r\nSilicone rubber in the kitchen | \u00a9 Magryt \u2013 stock.adobe.com\r\nSealing profiles | \u00a9 DmyTo \u2013 stock.adobe.com\r\nTypical silicone sealant | \u00a9 Achim Hering \u2013 de.wikipedia.org<\/pre>\n","protected":false},"excerpt":{"rendered":"<p>The material silicone rubber offers a wide range of excellent technical properties and is therefore used in many different applications. But what can this elastomer do\u2014the one found in clothing, shoes, baking accessories, prosthetics, medical devices, and cable sheathing? The following article takes a closer look at how silicone rubber is manufactured, its properties, its &hellip;<\/p>\n","protected":false},"author":7,"featured_media":12429,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1,2748],"tags":[3306,3454,2761,3846,3853,2772,2927,3847,3848,3852,3849,3062,3649,3213,2769,3850,3845,3851],"class_list":["post-15948","post","type-post","status-publish","format-standard","has-post-thumbnail","","category-all-articles","category-materials-in-chemistry","tag-adhesive","tag-chemical-hose","tag-dairy-pipe-union-rings","tag-fiberglass-insert","tag-food-en","tag-high-temperature-en","tag-hoses","tag-insulating-hose","tag-insulating-hoses","tag-material","tag-medical-engineering","tag-pharmaceutical-technology","tag-seals","tag-semi-finished-products","tag-silicone","tag-silicone-foam-sheet","tag-silicone-rubber","tag-stoppers"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.1 - 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Danach war er bis zur politischen Wende 1989 als wissenschaftlicher Mitarbeiter am Zentralinstitut f\u00fcr Kernforschung Rossendorf (ZfK) der Akademie der Wissenschaften in verschiedenen Bereichen der Isotopenproduktion und Markierungschemie t\u00e4tig. 1990 wurde er im neu gegr\u00fcndeten Leibnitz-Forschungszentrum Dresden - Rossendorf, dem heutigen Helmholtz-Zentrum, mit der Leitung der Abteilung f\u00fcr Organische Tracerchemie des Instituts f\u00fcr Radiochemie betraut, die sich mit umweltchemischen Prozessen in den Hinterlassenschaften des Uranbergbaus der DDR befasste. Dr. Heise ist begeisterter Hobby-Numismatiker und besch\u00e4ftigt sich dabei vornehmlich mit der h\u00f6fischen Medaillenkunst des 19. 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