{"id":6961,"date":"2012-03-01T00:00:00","date_gmt":"2012-03-01T00:00:00","guid":{"rendered":"https:\/\/insulation.org\/io\/articles\/exploring-insulation-materials-10\/"},"modified":"2012-03-01T00:00:00","modified_gmt":"2012-03-01T00:00:00","slug":"exploring-insulation-materials-10","status":"publish","type":"articles","link":"https:\/\/insulation.org\/io\/articles\/exploring-insulation-materials-10\/","title":{"rendered":"Exploring Insulation Materials"},"content":{"rendered":"<p class=BasicParagraph style=':justify;line-height:normal'><span\nstyle='-family:\"Calibri\",\"sans-serif\";color:windowtext'><strong>Cellular Glass<\/strong><\/span><\/p>\n<p class=MsoNormal style='text-autospace:none;:middle'><span\nstyle='-size:10.0pt'>Cellular glass insulation is a rigid, inorganic,<br \/>\nnon-combustible, impermeable, chemically resistant form of glass. It is<br \/>\navailable faced or un-faced (jacketed or un-jacketed). Cellular glass is<br \/>\ndefined by ASTM as insulation composed of glass processed to form a rigid foam<br \/>\nhaving a predominantly closed-cell structure. Cellular glass is covered by ASTM<br \/>\nC552, &#8220;Standard Specification for Cellular Glass Thermal Insulation,&#8221; and is<br \/>\nintended for use on surfaces operating at temperatures between -450 and 800\u00b0F.<br \/>\nThe Standard defines two grades and four types, as follows:<\/span><\/p>\n<p><img decoding=\"async\" src=\"\/io\/wp-content\/uploads\/sites\/3\/2016\/10\/March2012_chart2.jpg\"><\/p>\n<p class=MsoNormal style='text-autospace:none;:middle'><span\nstyle='-size:10.0pt'>Cellular glass is produced in block form (Type I).<br \/>\nBlocks of Type I product are typically shipped to fabricators who produce<br \/>\nfabricated shapes (Types II, III, and IV) that are supplied to distributors<br \/>\nand\/or insulation contractors.<\/span><\/p>\n<p class=MsoNormal style='text-autospace:none;:middle'><span\nstyle='-size:10.0pt'><\/span><\/p>\n<p class=MsoNormal style='text-autospace:none;:middle'><span\nstyle='-size:10.0pt'>The maximum thermal conductivity is specified, by<br \/>\ngrade, as follows (for selected temperatures).<\/span><\/p>\n<p><img decoding=\"async\" src=\"\/io\/wp-content\/uploads\/sites\/3\/2016\/10\/March2012_chart1.jpg\"><\/p>\n<p class=MsoNormal style='text-autospace:none;:middle'><span\nstyle='-size:10.0pt;:-.05pt'>The standard also contains<br \/>\nrequirements for density, compressive strength, flexural strength, water<br \/>\nabsorption, water-vapor permeability, combustibility, and surface burning<br \/>\ncharacteristics.<\/span><\/p>\n<p class=BasicParagraph style=':justify;line-height:normal'><span\nstyle='-size:10.0pt;-family:\"Calibri\",\"sans-serif\";color:windowtext'><\/span><\/p>\n<p class=BasicParagraph style=':justify;line-height:normal'><span\nstyle='-size:10.0pt;-family:\"Calibri\",\"sans-serif\";color:windowtext;\n:-.05pt'>Because of the wide temperature range, different<br \/>\nfabrication techniques are sometimes used at various operating temperature<br \/>\nranges. Typically, fabrication of cellular glass insulation involves gluing<br \/>\nmultiple blocks together to form a &#8220;billet,&#8221; which is then used to produce pipe<br \/>\ninsulation or special shapes. The glue or adhesives used vary with the intended<br \/>\nend use and design operating temperatures. For below-ambient applications, hot<br \/>\nmelt adhesives such as ASTM D312 Type III asphalt are usually used. On above-ambient<br \/>\nsystems, or where organic adhesives could pose a problem (i.e., LOX service),<br \/>\nan inorganic product such as gypsum cement is often used as fabricating<br \/>\nadhesive. Other adhesives may be recommended for specific applications. When<br \/>\nspecifying cellular glass insulation, include system operating conditions to<br \/>\nensure proper fabrication.<\/span><\/p>\n<p class=BasicParagraph><i><span style='-family:\"Calibri\",\"sans-serif\";\ncolor:windowtext'>&nbsp;<\/span><\/i><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Cellular Glass Cellular glass insulation is a rigid, inorganic, non-combustible, impermeable, chemically resistant form of glass. It is available faced or un-faced (jacketed or un-jacketed). Cellular glass is defined by ASTM as insulation composed of glass processed to form a rigid foam having a predominantly closed-cell structure. Cellular glass is covered by ASTM C552, &#8220;Standard<\/p>\n","protected":false},"author":[],"featured_media":0,"template":"","categories":[38,34,294,24,301,297],"class_list":["post-6961","articles","type-articles","status-publish","hentry","category-material-selection","category-industrial","category-training","category-contracting","category-design","category-basic-understanding"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v24.0 (Yoast SEO v24.6) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Exploring Insulation Materials - Insulation Outlook Magazine<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/insulation.org\/io\/articles\/exploring-insulation-materials-10\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Exploring Insulation Materials\" \/>\n<meta property=\"og:description\" content=\"Cellular Glass Cellular glass insulation is a rigid, inorganic, non-combustible, impermeable, chemically resistant form of glass. It is available faced or un-faced (jacketed or un-jacketed). Cellular glass is defined by ASTM as insulation composed of glass processed to form a rigid foam having a predominantly closed-cell structure. 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It is available faced or un-faced (jacketed or un-jacketed). Cellular glass is defined by ASTM as insulation composed of glass processed to form a rigid foam having a predominantly closed-cell structure. 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