{"id":1585,"date":"2015-07-02T05:36:10","date_gmt":"2015-07-02T05:36:10","guid":{"rendered":"https:\/\/permabond.com\/cyanoacrylate-adhesive-environmental-resistance\/"},"modified":"2025-12-31T17:35:07","modified_gmt":"2025-12-31T17:35:07","slug":"cyanoacrylate-adhesive-environmental-resistance","status":"publish","type":"post","link":"https:\/\/permabond.com\/fr\/cyanoacrylate-adhesive-environmental-resistance\/","title":{"rendered":"Cyanoacrylate Adhesive Environmental Resistance"},"content":{"rendered":"\r\n
\"cyano\"<\/a>\r\n
\r\n

Chemical Resistance of Cyanoacrylate Adhesive<\/h2>\r\n\r\n\r\n\r\n

It doesn\u2019t seem logical, but cyanoacrylate adhesives<\/a> have more chemical resistance to gasoline than they do to water.\u00a0 One customer who used acetone to remove excess adhesive wanted to speed up the process.\u00a0 So he tried toluene which is normally thought of as a stronger solvent.\u00a0 The toluene didn\u2019t seem to have much effect at all. The bottom line is cyanoacrylates<\/a> have poor resistance to polar solvents and better resistance to non-polar solvents.<\/p>\r\n<\/div>\r\n<\/div>\r\n\r\n\r\n\r\n

The dielectric constant of each solvent provides a general measure of a solvent’s polarity.\u00a0 Water is very polar and (at 70\u00b0F the dielectric constant is 80.\u00a0 Gasoline is non-polar at 70\u00b0F the dielectric constant is 2.\u00a0 Although water will remove it over time, manufacturers recommend removing cyanoacrylate<\/a> adhesive with acetone which has a dielectric constant of 21 and nitromethane which is 36.\u00a0 Both acetone and nitromethane are polar aprotic solvents.<\/p>\r\n\r\n\r\n\r\n

Other factors that affect the chemical resistance of the bond include temperature and bond design.<\/p>\r\n\r\n\r\n\r\n

Heat resistance of Cyanoacrylate Adhesive<\/h2>\r\n\r\n\r\n\r\n

The following chart shows the % strength retention of cyanoacrylates<\/a>.\u00a0 Standard cyanoacrylates<\/a> retain about 50% of their original strength at 80\u00b0C.\u00a0 Enhanced grades retain 50% strength to 120\u00b0C.\u00a0 Special high temperature grades resist much higher temperatures.\u00a0 To activate the high temperature resistance, the following secondary curing mechanism enables additional cross linking of the polymer, allowing the cured adhesive to resist higher temperatures.\u00a0 Note: this procedure will only activate the high temperature resistance designed into specialty grades.\u00a0 It will not improve the temperature resistance of other grades.<\/p>\r\n\r\n\r\n\r\n

1) Parts are bonded and clamped at room temperature for four hours.<\/p>\r\n\r\n\r\n\r\n

2) The clamped parts are then heated at 150\u00b0C (302\u00b0F) for two hours.<\/p>\r\n\r\n\r\n\r\n

3) Then, after the two hours, the bond will be thermally resistant up to 250\u00b0C (482\u00b0).<\/p>\r\n

For resistance to 200\u00b0C (392\u00b0F) with no need for a secondary heat cure choose Permabond 825<\/a> (Patented Technology)<\/strong><\/p>\r\n\r\n\r\n\r\n

\r\n
\"cyano<\/a><\/figure>\r\n<\/div>\r\n\r\n\r\n\r\n

For further help and advice, please contact<\/a>\u00a0Permabond.<\/p>\r\n","protected":false},"excerpt":{"rendered":"

Chemical Resistance of Cyanoacrylate Adhesive It doesn\u2019t seem logical, but cyanoacrylate adhesives have more chemical resistance to gasoline than they do to water.\u00a0 One customer who used acetone to remove excess adhesive wanted to speed up the process.\u00a0 So he tried toluene which is normally thought of as a stronger solvent.\u00a0 The toluene didn\u2019t seem […]<\/p>\n","protected":false},"author":5,"featured_media":1586,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[794,603],"tags":[42,57],"class_list":["post-1585","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-adhesive-properties-de","category-environmental-resistance","tag-adhesives","tag-cyanoacrylates"],"acf":[],"yoast_head":"\nCyanoacrylate Chemical Resistance & Temperature. Resistance<\/title>\n<meta name=\"description\" content=\"Temperature and Chemical resistance of cyanoacrylate adhesives (instant adhesives) are explained.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/permabond.com\/fr\/cyanoacrylate-adhesive-environmental-resistance\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Cyanoacrylate Adhesive Environmental Resistance\" \/>\n<meta property=\"og:description\" content=\"Temperature and Chemical resistance of cyanoacrylate adhesives (instant adhesives) are explained.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/permabond.com\/fr\/cyanoacrylate-adhesive-environmental-resistance\/\" \/>\n<meta property=\"og:site_name\" content=\"Permabond\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/permabondEA\/\" \/>\n<meta property=\"article:published_time\" content=\"2015-07-02T05:36:10+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-12-31T17:35:07+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/permabond.local\/wp-content\/uploads\/2022\/11\/cyano-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"934\" \/>\n\t<meta property=\"og:image:height\" content=\"726\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Laurie Gibbons\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@PermabondEA\" \/>\n<meta name=\"twitter:site\" content=\"@PermabondEA\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Laurie Gibbons\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Cyanoacrylate Chemical Resistance & Temperature. 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