{"id":356,"date":"2020-10-29T18:56:16","date_gmt":"2020-10-29T18:56:16","guid":{"rendered":"https:\/\/live-technetics.pantheonsite.io\/?page_id=356"},"modified":"2025-07-25T00:34:51","modified_gmt":"2025-07-25T04:34:51","slug":"acoustic-media","status":"publish","type":"page","link":"https:\/\/technetics.com\/fr\/technetics-products\/acoustic-media\/","title":{"rendered":"Acoustique FELTMETAL<sup>\u2122<\/sup>"},"content":{"rendered":"\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-fy931-d793c1bdc2657d33bf658fef5ec0f619\">\n.avia-section.av-fy931-d793c1bdc2657d33bf658fef5ec0f619 .av-parallax .av-parallax-inner{\nbackground-repeat:no-repeat;\nbackground-image:url(https:\/\/technetics.com\/wp-content\/uploads\/2020\/11\/acoustic-media_v3.jpg);\nbackground-position:50% 50%;\nbackground-attachment:scroll;\n}\n<\/style>\n<div id='interior-page-header-image'  class='avia-section av-fy931-d793c1bdc2657d33bf658fef5ec0f619 main_color avia-section-default avia-no-border-styling  avia-builder-el-0  el_before_av_section  avia-builder-el-first  avia-full-stretch av-parallax-section avia-bg-style-parallax container_wrap fullsize'  data-section-bg-repeat='stretch'><div class='av-parallax' data-avia-parallax-ratio='0.3' ><div class='av-parallax-inner main_color avia-full-stretch'><\/div><\/div><div class='container av-section-cont-open' ><main  role=\"main\" itemprop=\"mainContentOfPage\"  class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-356'><div class='entry-content-wrapper clearfix'>\n<\/div><\/div><\/main><!-- close content main element --><\/div><\/div><div id='av_section_2'  class='avia-section av-kgvlxp99-c9acdad4986b5cb5938aec7e4bdf2f71 main_color avia-section-default avia-no-border-styling  avia-builder-el-1  el_after_av_section  el_before_av_section  interior-page-intro-paragraph avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-356'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-90j45-ff9d9e9bb4ca36f0b722e023366d31f9\">\n.flex_column.av-90j45-ff9d9e9bb4ca36f0b722e023366d31f9{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-90j45-ff9d9e9bb4ca36f0b722e023366d31f9 av_one_full  avia-builder-el-2  avia-builder-el-no-sibling  first flex_column_div av-zero-column-padding  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-kf8stopq-4cf6a43b483a5e3dac9eff600575fa38\">\n#top .hr.av-kf8stopq-4cf6a43b483a5e3dac9eff600575fa38{\nmargin-top:30px;\nmargin-bottom:30px;\n}\n.hr.av-kf8stopq-4cf6a43b483a5e3dac9eff600575fa38 .hr-inner{\nwidth:50px;\n}\n<\/style>\n<div  id=\"center-accent-line\"  class='hr av-kf8stopq-4cf6a43b483a5e3dac9eff600575fa38 hr-custom  avia-builder-el-3  el_before_av_textblock  avia-builder-el-first  hr-center hr-icon-no'><span class='hr-inner inner-border-av-border-thin'><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n<section  class='av_textblock_section av-kgvndh38-5ab094fe118cb230080e9940b63a8303 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock intro-paragraph'  itemprop=\"text\" ><p>When noise is an issue, Technetics Group\u2019s acoustic media quietly does the job. Our FELTMETAL\u2122 Acoustic Media provides enhanced noise control for applications such as inlet and exhaust for both APU and propulsion engines. FELTMETAL\u2122 is also used in environment control systems to reduce noise and control moisture inside the cabin.<\/p>\n<\/div><\/section><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-kmnhosvx-9caca6c82a7043153db3b88fdd2c7905\">\n#top .hr.hr-invisible.av-kmnhosvx-9caca6c82a7043153db3b88fdd2c7905{\nheight:8px;\n}\n<\/style>\n<div  class='hr av-kmnhosvx-9caca6c82a7043153db3b88fdd2c7905 hr-invisible  avia-builder-el-5  el_after_av_textblock  el_before_av_button '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n<div  id=\"view-products\"  class='avia-button-wrap av-kf8qni8j-a8e9c37601bb2b14971c3940393447eb-wrap avia-button-left  avia-builder-el-6  el_after_av_hr  el_before_av_hr  light-hover'><a href='#products-category-product-section'  class='avia-button av-kf8qni8j-a8e9c37601bb2b14971c3940393447eb av-link-btn avia-icon_select-yes-right-icon avia-size-small avia-position-left avia-color-theme-color'   aria-label=\"View Products\"><span class='avia_iconbox_title' >View Products<\/span><span class='avia_button_icon avia_button_icon_right avia-iconfont avia-font-entypo-fontello' data-av_icon='\ue879' data-av_iconfont='entypo-fontello' ><\/span><\/a><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-kmnhp0xa-2d7fb71c2bbda57f5b3c3afca883a803\">\n#top .hr.hr-invisible.av-kmnhp0xa-2d7fb71c2bbda57f5b3c3afca883a803{\nheight:20px;\n}\n<\/style>\n<div  class='hr av-kmnhp0xa-2d7fb71c2bbda57f5b3c3afca883a803 hr-invisible  avia-builder-el-7  el_after_av_button  el_before_av_textblock '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n<section  class='av_textblock_section av-kgvndh38-71cea00001874c6c073925942deea6f1 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h4><strong>About Technetics Group Acoustic Media<\/strong><\/h4>\n<p>Technetics Group FELTMETAL\u2122 Acoustic Media can be found in the crew cabins onboard the\u00a0 International Space Station (ISS), and before that, on Skylab. We help keep the aircraft cabin quiet within the environmental control systems (ECS), such as our application on the Boeing 787 Dreamliner. The extreme temperature performance of FELTMETAL\u2122 allows it to operate in both inlet and outlet applications onboard Airbus and Boeing commercial aircraft Auxiliary Power Units (APU).\u00a0 It is an engineered, porous material made of sintered metal fibers. The size of the fiber, porosity and thickness of the fibers combine to control the desired flow and sound absorption. To enhance the structural properties, the metal fibers may be reinforced by sintering to screen mesh or perforated plate.<\/p>\n<h4><strong>Product Features<\/strong><\/h4>\n<ul>\n<li><strong>High temperature resistance &#8211; <\/strong>FELTMETAL\u2122 enables hot gases to be expanded gradually, thereby reducing turbulence and the amount of noise generated<\/li>\n<li><strong>Optimum performance<\/strong> &#8211; Accomplished through acoustic impedance matching<\/li>\n<li><strong>Readily cleanable &#8211; <\/strong>Simple cleaning operations and a material that is highly resistant to any performance degradation from numerous freeze\/thaw cycles<\/li>\n<li><strong>Excellent erosion resistance &#8211; <\/strong>Long service life<\/li>\n<li><strong>Low non-linearity factors &#8211; <\/strong>Very effective resistance to high pressure waves\/distortions<\/li>\n<li><strong>Exceptional performance at high frequencies &#8211; <\/strong>Able to target nuisance frequencies\u00a0 (e.g. buzzing, humming, honeybee sounds that emanate from drones)<\/li>\n<li><strong>Corrosion resistant &#8211; <\/strong>Resistant to aggressive cleaning agents<\/li>\n<li><strong>Reliable performance in wet conditions &#8211; <\/strong>The material porosity allows the sound waves to push out any trapped liquids<\/li>\n<\/ul>\n<h4><strong>Industries and Applications<\/strong><\/h4>\n<ul>\n<li><strong>Commercial and Business Aircraft &#8211; <\/strong>APU inlet\/exhaust and ECS ducting<\/li>\n<li><strong>Human Spaceflight<\/strong>: Acoustics and Noise Control in Space Crew Compartments<\/li>\n<li><strong>Industrial: <\/strong>Manufacturing Machinery and Heavy-duty HVAC Systems<\/li>\n<\/ul>\n<h4><strong>Properties and Technical Information<\/strong><\/h4>\n<ul>\n<li><strong>Fiber Dimensions<br \/>\n<\/strong>FELTMETAL\u2122 Acoustic Media is produced from fibers having diameters ranging from 50 to 150 microns. Finer fibers offer the advantage of lighter weight and lower non-linearity factors.<\/li>\n<\/ul>\n<ul>\n<li><strong>Extreme Temperature Performance<\/strong>\n<ul>\n<li>Austenitic stainless steels (Types 316L and 347) for service temperatures up to 932\u02daF (500\u02daC)<\/li>\n<li>FeCrAIY for temperatures up to 2012\u02daF (1100\u02daC)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li><strong>How FELTMETAL\u2122 <\/strong><strong>Acoustic Media <\/strong><strong>Works<br \/>\n<\/strong>When a sound wave is reflected from a hard surface of a silencer, constructive and destructive interference waves occur. If a porous material is placed across the wave pattern, the movement of air molecules through the material is converted to heat, resulting in a reduction in sound intensity. This reduction is highest if the material is placed at a location where the air molecule velocity is a maximum \u00bc of the wavelength. The flow resistance of the porous material is critical to the efficiency of the attenuation process\u2014if the resistance is too high, then the material acts as a hard surface and reflects the sound. But if the resistance is too low, then the sound wave travels freely through the material. In either case, the sound attenuation is less than optimal. We can help you find the optimal attenuating solution.<\/li>\n<\/ul>\n<\/div><\/section><\/p><\/div><\/div><\/div><\/div><!-- close content main div --><\/div><\/div><div id='products-category-product-section'  class='avia-section av-kgvlxp99-cb690a2182a30f476dabbdd6341dfc77 main_color avia-section-default avia-no-border-styling  avia-builder-el-9  el_after_av_section  el_before_av_section  light-gray-section avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-356'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-90j45-ff9d9e9bb4ca36f0b722e023366d31f9\">\n.flex_column.av-90j45-ff9d9e9bb4ca36f0b722e023366d31f9{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-90j45-ff9d9e9bb4ca36f0b722e023366d31f9 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margin:0px 0px 30px 10px ; position:relative}<\/style>\n<style type=\"text\/css\">.eg-the-latest-from-container{background:transparent}<\/style>\n<style type=\"text\/css\">.eg-the-latest-from-content{background:#ffffff; padding:0px 0px 0px 0px; border-width:0px 0px 0px 0px; border-radius:0px 0px 0px 0px; border-color:transparent; border-style:double; text-align:left}<\/style>\n<style type=\"text\/css\">.esg-grid .mainul li.eg-the-latest-from-wrapper{background:#3f424a; padding:0px 0px 0px 0px; border-width:0px 0px 0px 0px; border-radius:0px 0px 0px 0px; border-color:transparent; border-style:none}<\/style>\n<style type=\"text\/css\">.esg-grid .mainul li.eg-the-latest-from-wrapper .esg-media-poster{background-size:cover; background-position:center left; background-repeat:no-repeat}<\/style>\n<!-- THE ESSENTIAL GRID 3.1.1 POST -->\n\n<article class=\"myportfolio-container esg-grid-wrap-container uwe-krupp esg-entry-skin-the-latest-from source_type_post\" id=\"esg-grid-155-2-wrap\" data-alias=\"Product Category Resources - Acoustic Media\">\n\n   <div id=\"esg-grid-155-2\" class=\"esg-grid\" style=\"background: transparent;padding: 0px 0px 0px 0px ; box-sizing:border-box; -moz-box-sizing:border-box; -webkit-box-sizing:border-box; display:none\">\n<ul>\n<li id=\"eg-155-post-id-9960_5399\" data-skin=\"the-latest-from\" class=\"filterall filter-product-flyers filter-abradable-seals filter-accumulators-reservoirs filter-acoustic-media filter-brush-seals filter-circumferential-seals filter-elastomer-inflatable-seals filter-mechanical-seals filter-metal-bellows filter-metal-seals filter-overpressure-protection-solutions filter-peek-shapes-components filter-sealing-systems-subassemblies filter-chemical-processing filter-commercial-aircraft filter-construction filter-flow-control filter-hydrogen filter-industrial filter-industrial-turbines filter-life-sciences filter-military filter-new-energies filter-nuclear filter-oil-gas filter-pumps filter-semiconductor filter-sensors filter-space filter-valves filter-abradable-seals filter-accumulators-reservoirs-category filter-accumulators-reservoirs-category-accumulators-reservoirs filter-acoustic-media filter-belfab-edge-welded-metal-bellows filter-brush-seals filter-brush-seals-brush-seals filter-burst-disc-relief-check-valve filter-burst-discs filter-c-flex filter-cefilair-inflatable-seals filter-cefilac-gpa-mechanical-seals filter-circumferential-seals filter-custom-mechanical-seals filter-custom-seals filter-e-flex filter-elastomer-and-inflatable-seals filter-extruded-profiles filter-feltmetal-abradable-seals filter-feltmetal-acoustic-media filter-helicoflex filter-helicoflex-delta filter-hydrodynamic-seals filter-k-port-metal-boss-sealing filter-kenol-joints filter-lamelflex filter-machined-metal-seals filter-mechanical-seals filter-metal-bellows filter-metal-seals filter-molded-seals filter-ms-o-flex filter-nuclear-reactor-pressure-vessel-seals filter-o-flex filter-qualiseal-contacting-face-seals filter-qualiseal-controlled-gap-bushing filter-qualiseal-mating-rings filter-qualiseal-metal-bellows filter-qualiseal-non-contacting-face-seals filter-qualiseal-segmented-seals filter-quick-disconnect-system-qds filter-safe-shear-burst-disc eg-the-latest-from-wrapper eg-post-id-9960\" data-title=\"product-overview-brochure\" data-date=\"1706026981\">\n    <div class=\"esg-media-cover-wrapper\">\n<div class=\"esg-entry-media\"><img loading=\"lazy\" decoding=\"async\" class=\"esg-entry-media-img\"  src=\"https:\/\/technetics.com\/wp-content\/uploads\/2024\/01\/TG_Overview_Thumbnail-2.jpg\" data-no-lazy=\"1\" alt=\"\" width=\"1080\" height=\"810\"><\/div>\n\n<div class=\"esg-entry-content eg-the-latest-from-content\">\n\t\t\t\t<div class=\"esg-content eg-post-9960 eg-the-latest-from-element-3\">Product Overview Brochure<\/div>\n\t\t\t\t<div class=\"esg-content eg-post-9960 eg-the-latest-from-element-17-a\"><a class=\"eg-the-latest-from-element-17 eg-post-9960\" href=\"https:\/\/technetics.com\/fr\/resource_library\/product-overview-brochure\/\" target=\"_self\">Read More<\/a><\/div>\n<\/div>   <\/div>\n\n<\/li>\n<li id=\"eg-155-post-id-9963_6438\" data-skin=\"the-latest-from\" class=\"filterall filter-market-brochures filter-abradable-seals filter-acoustic-media filter-brush-seals filter-circumferential-seals filter-elastomer-inflatable-seals filter-mechanical-seals filter-metal-bellows filter-metal-seals filter-overpressure-protection-solutions filter-sealing-systems-subassemblies filter-commercial-aircraft filter-military filter-space filter-abradable-seals filter-acoustic-media filter-belfab-edge-welded-metal-bellows filter-brush-seals-brush-seals filter-brush-seals filter-burst-disc-relief-check-valve filter-burst-discs filter-c-flex filter-circumferential-seals filter-custom-mechanical-seals filter-custom-seals filter-e-flex filter-feltmetal-abradable-seals filter-feltmetal-acoustic-media filter-helicoflex filter-helicoflex-delta filter-hydrodynamic-seals filter-k-port-metal-boss-sealing filter-lamelflex filter-machined-metal-seals filter-mechanical-seals filter-metal-bellows filter-metal-seals filter-molded-seals filter-ms-o-flex filter-o-flex filter-qualiseal-contacting-face-seals filter-qualiseal-controlled-gap-bushing filter-qualiseal-mating-rings filter-qualiseal-metal-bellows filter-qualiseal-non-contacting-face-seals filter-qualiseal-segmented-seals filter-safe-shear-burst-disc eg-the-latest-from-wrapper eg-post-id-9963\" data-title=\"aerospace-brochure\" data-date=\"1705942955\">\n    <div class=\"esg-media-cover-wrapper\">\n<div class=\"esg-entry-media\"><img loading=\"lazy\" decoding=\"async\" class=\"esg-entry-media-img\"  src=\"https:\/\/technetics.com\/wp-content\/uploads\/2024\/01\/TG_AEROSPACE_Thumbnail.jpg\" data-no-lazy=\"1\" alt=\"\" width=\"1080\" height=\"810\"><\/div>\n\n<div class=\"esg-entry-content eg-the-latest-from-content\">\n\t\t\t\t<div class=\"esg-content eg-post-9963 eg-the-latest-from-element-3\">Aerospace Brochure<\/div>\n\t\t\t\t<div class=\"esg-content eg-post-9963 eg-the-latest-from-element-17-a\"><a class=\"eg-the-latest-from-element-17 eg-post-9963\" href=\"https:\/\/technetics.com\/fr\/resource_library\/aerospace-brochure\/\" target=\"_self\">Read More<\/a><\/div>\n<\/div>   <\/div>\n\n<\/li>\n<li id=\"eg-155-post-id-7101_3837\" data-skin=\"the-latest-from\" class=\"filterall filter-videos filter-acoustic-media filter-brush-seals filter-circumferential-seals filter-elastomer-inflatable-seals filter-mechanical-seals filter-metal-bellows filter-metal-seals filter-space filter-acoustic-media filter-belfab-edge-welded-metal-bellows filter-brush-seals filter-burst-discs filter-c-flex filter-circumferential-seals filter-e-flex filter-elastomer-and-inflatable-seals filter-etching filter-feltmetal-acoustic-media filter-fluoroplastic-solutions filter-helicocarb filter-helicoflex filter-helicoflex-delta filter-k-port-metal-boss-sealing filter-machined-metal-seals filter-mechanical-seals filter-metal-bellows filter-metal-seals filter-molded-seals filter-premium-grade-fluoroplastic-solutions filter-pressure-relief-valves filter-qualiseal-contacting-face-seals filter-qualiseal-controlled-gap-bushing filter-qualiseal-segmented-seals filter-safe-shear-burst-disc eg-the-latest-from-wrapper eg-post-id-7101\" data-title=\"the-awe-and-engineering-of-space\" data-date=\"1621521931\">\n    <div class=\"esg-media-cover-wrapper\">\n<div class=\"esg-entry-media\"><img loading=\"lazy\" decoding=\"async\" class=\"esg-entry-media-img\"  src=\"https:\/\/technetics.com\/wp-content\/uploads\/2021\/05\/astronaut.png\" data-no-lazy=\"1\" alt=\"\" width=\"1440\" height=\"777\"><\/div>\n\n<div class=\"esg-entry-content eg-the-latest-from-content\">\n\t\t\t\t<div class=\"esg-content eg-post-7101 eg-the-latest-from-element-3\">The Awe and Engineering of Space Exploration<\/div>\n\t\t\t\t<div class=\"esg-content eg-post-7101 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id=\"eg-155-post-id-1732_2361\" data-skin=\"the-latest-from\" class=\"filterall filter-product-flyers filter-acoustic-media filter-commercial-aircraft filter-acoustic-media filter-feltmetal-acoustic-media eg-the-latest-from-wrapper eg-post-id-1732\" data-title=\"acoustic-media-brochure\" data-date=\"1607280632\">\n    <div class=\"esg-media-cover-wrapper\">\n<div class=\"esg-entry-media\"><img loading=\"lazy\" decoding=\"async\" class=\"esg-entry-media-img\"  src=\"https:\/\/technetics.com\/wp-content\/uploads\/2020\/12\/DeLand-AcousticAbradableMaterial.jpg\" data-no-lazy=\"1\" alt=\"\" width=\"1080\" height=\"717\"><\/div>\n\n<div class=\"esg-entry-content eg-the-latest-from-content\">\n\t\t\t\t<div class=\"esg-content eg-post-1732 eg-the-latest-from-element-3\">Acoustic Media Brochure<\/div>\n\t\t\t\t<div class=\"esg-content eg-post-1732 eg-the-latest-from-element-17-a\"><a class=\"eg-the-latest-from-element-17 eg-post-1732\" 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><\/span><\/a><\/div><\/p><\/div>\n\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":238,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"inline_featured_image":false,"footnotes":""},"classification":[],"class_list":["post-356","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Acoustic Media | Technetics Group<\/title>\n<meta name=\"description\" content=\"Reduce noise in your aircraft with Technetics Group\u2019s FELTMETAL\u2122 Acoustic Media. 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