{"id":1562,"date":"2026-02-28T08:12:33","date_gmt":"2026-02-28T08:12:33","guid":{"rendered":"https:\/\/sltech.top\/ich\/?post_type=product&#038;p=1562"},"modified":"2026-04-01T07:34:02","modified_gmt":"2026-04-01T07:34:02","slug":"k-flex-st-duct-elastomeric-duct-insulation","status":"publish","type":"product","link":"https:\/\/sltech.top\/ich\/product\/k-flex-st-duct-elastomeric-duct-insulation\/","title":{"rendered":"K-FLEX ST DUCT \u2013 Elastomeric Duct Insulation"},"content":{"rendered":"<p data-path-to-node=\"3\"><b data-path-to-node=\"3\" data-index-in-node=\"20\">K-FLEX ST DUCT<\/b> is a high-performance elastomeric insulation sheet specifically engineered for the thermal and acoustic insulation of ventilation and air-conditioning ducts. Unlike traditional mineral wool, this synthetic rubber (FEF) solution features a closed-cell structure that prevents moisture ingress and fiber shedding, ensuring a cleaner and more durable installation. The material is designed with a standard width of 1500 mm to match common duct dimensions, significantly reducing installation time and waste. Its self-adhesive version features a roughened surface to improve grip on metal surfaces, while its high elasticity helps attenuate system vibrations at joints and suspensions.<\/p>\n<p data-path-to-node=\"4\"><b data-path-to-node=\"4\" data-index-in-node=\"0\">Real-World Applications<\/b><\/p>\n<ul data-path-to-node=\"5\">\n<li>\n<p data-path-to-node=\"5,0,0\"><b data-path-to-node=\"5,0,0\" data-index-in-node=\"0\">Commercial HVAC Systems:<\/b> Extensively used in shopping malls, office complexes, and hotels for insulating supply and return air ducts to prevent condensation and energy loss.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"5,1,0\"><b data-path-to-node=\"5,1,0\" data-index-in-node=\"0\">Hygiene-Sensitive Environments:<\/b> Ideal for hospitals, pharmaceutical laboratories, and food processing plants because it is fiber-free and resistant to mold, fungi, and bacterial growth.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"5,2,0\"><b data-path-to-node=\"5,2,0\" data-index-in-node=\"0\">Acoustic Vibration Dampening:<\/b> Applied in mechanical rooms and recording studios to reduce the transmission of noise and vibrations generated by high-velocity airflow and air handling units.<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"5,3,0\"><b data-path-to-node=\"5,3,0\" data-index-in-node=\"0\">Industrial Ventilation:<\/b> Suitable for pre-insulating duct segments at the workshop before site delivery, thanks to its mechanical flexibility and strong adhesive backing.<\/p>\n<\/li>\n<\/ul>\n<p data-path-to-node=\"6\"><b data-path-to-node=\"6\" data-index-in-node=\"0\">Specification (from Product Catalog)<\/b><\/p>\n<ul data-path-to-node=\"7\">\n<li>\n<p data-path-to-node=\"7,0,0\"><b data-path-to-node=\"7,0,0\" data-index-in-node=\"0\">Temperature Range:<\/b> -40 \u00b0C to +85 \u00b0C<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,1,0\"><b data-path-to-node=\"7,1,0\" data-index-in-node=\"0\">Thermal Conductivity (<span class=\"math-inline\" data-math=\"\\lambda\" data-index-in-node=\"22\">$\\lambda$<\/span>):<\/b> * Thickness <span class=\"math-inline\" data-math=\"\\leq\" data-index-in-node=\"44\">$\\leq$<\/span> 25mm: 0.033 W\/(m\u2022K) at 0 \u00b0C | 0.037 W\/(m\u2022K) at +40 \u00b0C<\/p>\n<ul data-path-to-node=\"7,1,1\">\n<li>\n<p data-path-to-node=\"7,1,1,0,0\">Thickness <span class=\"math-inline\" data-math=\"&gt;\" data-index-in-node=\"10\">$&gt;$<\/span> 25mm: 0.036 W\/(m\u2022K) at 0 \u00b0C | 0.040 W\/(m\u2022K) at +40 \u00b0C<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<p data-path-to-node=\"7,2,0\"><b data-path-to-node=\"7,2,0\" data-index-in-node=\"0\">Water Vapour Diffusion Resistance (<span class=\"math-inline\" data-math=\"\\mu\" data-index-in-node=\"35\">$\\mu$<\/span>):<\/b> <span class=\"math-inline\" data-math=\"\\geq\" data-index-in-node=\"41\">$\\geq$<\/span> 7000<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,3,0\"><b data-path-to-node=\"7,3,0\" data-index-in-node=\"0\">Fire Rating:<\/b> Euroclass B-s3, d0 (Standard Sheet)<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,4,0\"><b data-path-to-node=\"7,4,0\" data-index-in-node=\"0\">Corrosion Prevention:<\/b> pH Neutral (7 <span class=\"math-inline\" data-math=\"\\pm\" data-index-in-node=\"36\">$\\pm$<\/span> 1)<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,5,0\"><b data-path-to-node=\"7,5,0\" data-index-in-node=\"0\">Available Thicknesses:<\/b> 6, 8, 10, 12, 15, 20, 25, and 30 mm<\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"7,6,0\"><b data-path-to-node=\"7,6,0\" data-index-in-node=\"0\">Sheet Width:<\/b> 1500 mm (Standard) \/ 1800 mm (Upon Request)<\/p>\n<\/li>\n<\/ul>\n<hr data-path-to-node=\"8\" \/>\n<h3 data-path-to-node=\"9\"><b data-path-to-node=\"9\" data-index-in-node=\"0\">Authorized Distribution in Sri Lanka<\/b><\/h3>\n<p data-path-to-node=\"10\">To ensure the highest standards of installation and product authenticity, <b data-path-to-node=\"10\" data-index-in-node=\"74\">Incube Holding Sri Lanka<\/b> serves as the <b data-path-to-node=\"10\" data-index-in-node=\"113\">primary sales and distribution agent<\/b> for official <b data-path-to-node=\"10\" data-index-in-node=\"163\">K-FLEX<\/b> elastomeric insulation and <b data-path-to-node=\"10\" data-index-in-node=\"197\">HAPRI<\/b> building insulation products. Specializing in the <b data-path-to-node=\"10\" data-index-in-node=\"253\">Thermal and Acoustic Insulation Solutions<\/b> sector, Incube Holding provides enterprise clients and contractors in Sri Lanka with direct access to these premium insulation systems, backed by comprehensive technical support and local expertise.<\/p>\n<p data-path-to-node=\"11\">For reliable, durable, and energy-efficient ducting solutions that meet international safety and environmental standards, trust the partnership between <b data-path-to-node=\"11\" data-index-in-node=\"152\">K-FLEX<\/b> and <b data-path-to-node=\"11\" data-index-in-node=\"163\">Incube Holding<\/b> to deliver world-class insulation technology to your project.<\/p>\n","protected":false},"excerpt":{"rendered":"<ul>\n<li>\n<p data-path-to-node=\"1,0,0\"><b data-path-to-node=\"1,0,0\" data-index-in-node=\"0\"><span class=\"citation-235\">Applications:<\/span><\/b><span class=\"citation-235 citation-end-235\"> Thermal and Acoustic insulation of Ventilation and Air-Conditioning Ducts; ideal for Hospitals, Pharmaceutical Labs, and Hotels.<\/span><\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"1,1,0\"><b data-path-to-node=\"1,1,0\" data-index-in-node=\"0\"><span class=\"citation-234\">Key Features:<\/span><\/b><span class=\"citation-234 citation-end-234\"> 1500mm standard width (matching duct size), Closed-cell Elastomeric structure, Fiber-free, available in Self-Adhesive variants.<\/span><\/p>\n<\/li>\n<li>\n<p data-path-to-node=\"1,2,0\"><b data-path-to-node=\"1,2,0\" data-index-in-node=\"0\">Compliance:<\/b> Euroclass B-s3, d0, pH Neutral (7 \u00b1 1), resistant to mold and bacterial growth, meets high-performance energy efficiency standards.<\/p>\n<\/li>\n<\/ul>\n","protected":false},"featured_media":1564,"template":"","meta":{"_uag_custom_page_level_css":"","_swt_meta_header_display":false,"_swt_meta_footer_display":false,"_swt_meta_site_title_display":false,"_swt_meta_sticky_header":false,"_swt_meta_transparent_header":false},"product_brand":[43],"product_cat":[27,22],"product_tag":[74,36,76,46,75,29],"class_list":{"0":"post-1562","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-k-flex-insulation-materials-srilanka-incube-holdings","7":"product_cat-k-flex-flexible-duct-building-insulation-products-in-srilanka","8":"product_cat-thermal-and-acoustic-insulation-solutions","9":"product_tag-acoustic-insulation","10":"product_tag-building-insulation-products","11":"product_tag-flexible-duct","12":"product_tag-hvac","13":"product_tag-k-flex","14":"product_tag-thermal-insulation-product-in-sri-lanka","16":"first","17":"instock","18":"shipping-taxable","19":"product-type-simple"},"uagb_featured_image_src":{"full":["https:\/\/sltech.top\/ich\/wp-content\/uploads\/2026\/02\/k-flex-building-insulation-materials-flexible-duct-accessories-in-srilanka-incube-holdings.png",550,413,false],"thumbnail":["https:\/\/sltech.top\/ich\/wp-content\/uploads\/2026\/02\/k-flex-building-insulation-materials-flexible-duct-accessories-in-srilanka-incube-holdings-150x150.png",150,150,true],"medium":["https:\/\/sltech.top\/ich\/wp-content\/uploads\/2026\/02\/k-flex-building-insulation-materials-flexible-duct-accessories-in-srilanka-incube-holdings-300x225.png",300,225,true],"medium_large":["https:\/\/sltech.top\/ich\/wp-content\/uploads\/2026\/02\/k-flex-building-insulation-materials-flexible-duct-accessories-in-srilanka-incube-holdings.png",550,413,false],"large":["https:\/\/sltech.top\/ich\/wp-content\/uploads\/2026\/02\/k-flex-building-insulation-materials-flexible-duct-accessories-in-srilanka-incube-holdings.png",550,413,false],"1536x1536":["https:\/\/sltech.top\/ich\/wp-content\/uploads\/2026\/02\/k-flex-building-insulation-materials-flexible-duct-accessories-in-srilanka-incube-holdings.png",550,413,false],"2048x2048":["https:\/\/sltech.top\/ich\/wp-content\/uploads\/2026\/02\/k-flex-building-insulation-materials-flexible-duct-accessories-in-srilanka-incube-holdings.png",550,413,false],"woocommerce_thumbnail":["https:\/\/sltech.top\/ich\/wp-content\/uploads\/2026\/02\/k-flex-building-insulation-materials-flexible-duct-accessories-in-srilanka-incube-holdings-300x300.png",300,300,true],"woocommerce_single":["https:\/\/sltech.top\/ich\/wp-content\/uploads\/2026\/02\/k-flex-building-insulation-materials-flexible-duct-accessories-in-srilanka-incube-holdings.png",550,413,false],"woocommerce_gallery_thumbnail":["https:\/\/sltech.top\/ich\/wp-content\/uploads\/2026\/02\/k-flex-building-insulation-materials-flexible-duct-accessories-in-srilanka-incube-holdings-100x100.png",100,100,true]},"uagb_author_info":{"display_name":"ichadmin","author_link":"https:\/\/sltech.top\/ich\/author\/"},"uagb_comment_info":0,"uagb_excerpt":"Applications: Thermal and Acoustic insulation of Ventilation and Air-Conditioning Ducts; ideal for Hospitals, Pharmaceutical Labs, and Hotels. Key Features: 1500mm standard width (matching duct size), Closed-cell Elastomeric structure, Fiber-free, available in Self-Adhesive variants. Compliance: Euroclass B-s3, d0, pH Neutral (7 \u00b1 1), resistant to mold and bacterial growth, meets high-performance energy efficiency standards.","_links":{"self":[{"href":"https:\/\/sltech.top\/ich\/wp-json\/wp\/v2\/product\/1562","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sltech.top\/ich\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/sltech.top\/ich\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sltech.top\/ich\/wp-json\/wp\/v2\/media\/1564"}],"wp:attachment":[{"href":"https:\/\/sltech.top\/ich\/wp-json\/wp\/v2\/media?parent=1562"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/sltech.top\/ich\/wp-json\/wp\/v2\/product_brand?post=1562"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/sltech.top\/ich\/wp-json\/wp\/v2\/product_cat?post=1562"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/sltech.top\/ich\/wp-json\/wp\/v2\/product_tag?post=1562"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}