{"id":1885,"date":"2011-03-21T22:47:12","date_gmt":"2011-03-21T14:47:12","guid":{"rendered":"http:\/\/www.g4e.cn\/wordpress\/?p=1885"},"modified":"2013-11-19T16:12:54","modified_gmt":"2013-11-19T08:12:54","slug":"hernon-tuffbond-394-technical-data-sheet","status":"publish","type":"post","link":"http:\/\/www.g4e.cn\/wordpress\/datasheet\/1885.html","title":{"rendered":"Hernon Tuffbond 394 Technical Data Sheet"},"content":{"rendered":"<p><strong>Product Description<\/strong><\/p>\n<p><strong>Hernon<\/strong> <strong>Tuffbond<\/strong> <strong>394 <\/strong>is a single component, high temperature resistant, heat activated epoxy. It cures to a high performance thermoset system with excellent adhesion properties to a wide variety of substrates. The rapid curing mechanism of 1.5 minutes at a bondline temperature of 150\u00baC makes it ideal for production line use. <strong>Tuffbond<\/strong> <strong>394 <\/strong>will change from amber-yellow to a reddish brown upon cure.<\/p>\n<p>&nbsp;<\/p>\n<p>Bonding the voice coil to the cone has been a challenge for engineers, specifically when the adhesive temperature resistance requirement is above 200\u00baF (93\u00baC). Two component epoxy has been most commonly used for this application, but limitations such as mixing ratio, cure speed, potential solidification in equipment and static mixers and the need for equipment flushing solvents have made <strong>Tuffbond<\/strong> <strong>394 <\/strong>more practical.<!--more--><\/p>\n<p>&nbsp;<\/p>\n<p><strong>Product Benefits<\/strong><\/p>\n<ul>\n<li>\u2022 High temperature resistance.<\/li>\n<li>\u2022 Single component (no mixing, no pot life).<\/li>\n<li>\u2022 Solventless.<\/li>\n<li>\u2022 Cures on demand (heat cure).<\/li>\n<li>\u2022 Will not slip during cure.<\/li>\n<li>\u2022 Fast setting: 1.5 minutes at 150oC bondline.<\/li>\n<li>\u2022 Changes color upon cure (yellow to brown).<\/li>\n<li>\u2022 Excellent adhesion to various substrates.<\/li>\n<li>\u2022 Gives high shear.<\/li>\n<li>\u2022 Low water absorption.<\/li>\n<li>\u2022 Very rigid.<\/li>\n<li>\u2022 Low density.<\/li>\n<li>\u2022 No porosity upon cure.<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<p><strong>Typical Properties (Uncured)<\/strong><\/p>\n<p><strong>Property Value<\/strong><\/p>\n<p>Resin Epoxy<\/p>\n<p>Appearance Amber-yellow liquid<\/p>\n<p>Viscosity @ 25\u00baC, cP 44,000 to 56,000<\/p>\n<p>Specific gravity 1.19<\/p>\n<p>Flash point See MSDS<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Curing Characteristics<\/strong><\/p>\n<p><strong>Tuffbond<\/strong> <strong>394 <\/strong>can be cured by infra-red or convection oven. Cure time will depend on the bondline temperature.<\/p>\n<p><strong>Temperature, \u00baC (\u00baF) Cure Time, minutes<\/strong><\/p>\n<p>150 (300) 0.5<\/p>\n<p>120 (250) 1<\/p>\n<p>100 (212) 6<\/p>\n<p><strong>Typical Properties (Cured)<\/strong><\/p>\n<p><strong>Property Value<\/strong><\/p>\n<p>Heat Resistance, \u00baC (\u00baF) 204 (400)<\/p>\n<p>Elongation, % 6.1<\/p>\n<p><strong>Typical Cured Performance<\/strong><\/p>\n<p>Shear Strength, ISO 4587 Cured 5 minutes at 150\u00baC<\/p>\n<p><strong>Substrate Shear Strength, N\/mm\u00b2 (psi)<\/strong><\/p>\n<p>Steel 13.8 (2000)<\/p>\n<p>Aluminum 12.4 (1800)<\/p>\n<p><strong>Typical Environmental Resistance<\/strong><\/p>\n<p><strong>Chemical\/Solvent Resistance<\/strong><\/p>\n<p>Shear Strength, gritblasted steel, ISO 4587 Cured 2 minutes at 150\u00baC<\/p>\n<p>30 days immersion in chemical\/solvent<\/p>\n<p><strong>Chemical\/Solvent % Initial Strength Retained<\/strong><\/p>\n<p>Water 100<\/p>\n<p>Sulfuric Acid 99<\/p>\n<p>Ammonia, 25% 99<\/p>\n<p>Methanol 97<\/p>\n<p>Xylene 98<\/p>\n<p>&nbsp;<\/p>\n<p><strong>General Information<\/strong><\/p>\n<p><strong>This product is not recommended for use in pure oxygen and\/or oxygen rich systems and should not be selected as a sealant for chlorine or other strong oxidizing materials.<\/strong><\/p>\n<p><strong>For safe handling information on this product, consult the Material Safety Data Sheet (MSDS).<\/strong><\/p>\n<p>&nbsp;<\/p>\n<p><strong>Storage<\/strong><\/p>\n<p><strong>Tuffbond<\/strong> <strong>394 <\/strong>must be stored under refrigeration at a temperature of 35 to 40\u00baF for extended shelf life. To prevent contamination of unused material, do not return any material to its original container.<\/p>\n<p>&nbsp;<\/p>\n<p><strong>Dispensing Equipment<\/strong><\/p>\n<p><strong>Hernon<\/strong> offers a complete line of semi and fully automated dispensing equipment. Contact <strong>Hernon<\/strong> <strong>Sales <\/strong>for additional information.<\/p>\n<p>\u70b9\u51fb\u4e0b\u8f7d\u9644\u4ef6\u67e5\u770b\u4e4b\uff1a<p><img src=\"http:\/\/www.g4e.cn\/wordpress\/wp-content\/plugins\/hacklog-downloadmanager\/images\/ext\/pdf.gif\" alt=\"\" title=\"\" style=\"vertical-align: middle;\" \/>&nbsp;&nbsp;<strong><a href=\"http:\/\/www.g4e.cn\/wordpress\/?dl_id=24\">Hernon Tuffbond 394 Technical Data Sheet<\/a><\/strong> (85.6 KB, 180 \u6b21)<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Product Description Hernon Tuffbond 394 is a single com [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3761,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[667],"tags":[346,306,345,347],"_links":{"self":[{"href":"http:\/\/www.g4e.cn\/wordpress\/wp-json\/wp\/v2\/posts\/1885"}],"collection":[{"href":"http:\/\/www.g4e.cn\/wordpress\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.g4e.cn\/wordpress\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.g4e.cn\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.g4e.cn\/wordpress\/wp-json\/wp\/v2\/comments?post=1885"}],"version-history":[{"count":0,"href":"http:\/\/www.g4e.cn\/wordpress\/wp-json\/wp\/v2\/posts\/1885\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.g4e.cn\/wordpress\/wp-json\/wp\/v2\/media\/3761"}],"wp:attachment":[{"href":"http:\/\/www.g4e.cn\/wordpress\/wp-json\/wp\/v2\/media?parent=1885"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.g4e.cn\/wordpress\/wp-json\/wp\/v2\/categories?post=1885"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.g4e.cn\/wordpress\/wp-json\/wp\/v2\/tags?post=1885"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}