{"id":6941,"date":"2012-08-01T00:00:00","date_gmt":"2012-08-01T00:00:00","guid":{"rendered":"https:\/\/insulation.org\/io\/articles\/exploring-insulation-materials-6\/"},"modified":"2017-06-09T20:25:09","modified_gmt":"2017-06-09T20:25:09","slug":"exploring-insulation-materials-6","status":"publish","type":"articles","link":"https:\/\/insulation.org\/io\/articles\/exploring-insulation-materials-6\/","title":{"rendered":"Exploring Insulation Materials"},"content":{"rendered":"

Phenolic<\/span><\/b><\/p>\n

Phenolic
\ninsulation is rigid foam insulation with a closed-cell structure. It is
\nmanufactured as large rectangular buns typically 4 ft. wide x 3-12 ft. long x
\n1-2 ft. tall at a density of 2 lbs\/ft\u00b3. Prior to actual installation, buns are
\nfabricated into various shapes, including flat boards and preformed pipe
\nhalf-shells 3 ft. long, and designed to fit over NPS pipe and tubing. More
\ncomplex shapes can also be fabricated to fit around fittings, elbows, and other
\nequipment. ASTM material specification C 1126, Type III, Grade 1 covers this
\ntype of insulation at service temperatures from -290\u00b0F to 257\u00b0F. <\/p>\n

\nThe specification defines requirements for density, compressive
\nresistance, thermal conductivity, water absorption, water vapor permeability,
\nand dimensional stability. While this ASTM spec lists two grades and three
\ntypes, only the Type III, Grade 1 is appropriate for use in pipe insulation.
\nThe other types are boards, either faced with a vapor retarder or not, and used
\nfor building sheathing and roofing, respectively. Grade 2 is an open cell
\nproduct. For comparison purposes, the maximum thermal conductivities at 75\u00b0F
\nfor the Type III, Grade 1 phenolic insulation is 0.13 Btu-in\/hr-ft\u00b2-\u00b0F.<\/span><\/p>\n

Key
\napplications for phenolic insulation are on pipe, equipment, tanks, and ducts,
\nespecially those operating at temperatures below ambient.<\/span><\/p>\n

\n
<\/a>Figure 1<\/b><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"

Phenolic Phenolic insulation is rigid foam insulation with a closed-cell structure. It is manufactured as large rectangular buns typically 4 ft. wide x 3-12 ft. long x 1-2 ft. tall at a density of 2 lbs\/ft\u00b3. Prior to actual installation, buns are fabricated into various shapes, including flat boards and preformed pipe half-shells 3 ft.<\/p>\n","protected":false},"author":[],"featured_media":0,"template":"","categories":[37,38,298,294,24,301,21,297,288],"class_list":["post-6941","articles","type-articles","status-publish","hentry","category-market-research","category-material-selection","category-installation","category-training","category-contracting","category-design","category-business-managment","category-basic-understanding","category-fabrication"],"acf":[],"yoast_head":"\nExploring 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-6\/\" \/>\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=\"Phenolic Phenolic insulation is rigid foam insulation with a closed-cell structure. It is manufactured as large rectangular buns typically 4 ft. wide x 3-12 ft. long x 1-2 ft. tall at a density of 2 lbs\/ft\u00b3. 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