{"id":1466,"date":"2014-10-27T02:47:46","date_gmt":"2014-10-27T02:47:46","guid":{"rendered":"https:\/\/permabond.com\/twopart-polyurethane-adhesive-cure\/"},"modified":"2025-02-11T18:50:40","modified_gmt":"2025-02-11T18:50:40","slug":"curing-two-part-polyurethane","status":"publish","type":"post","link":"https:\/\/permabond.com\/de\/curing-two-part-polyurethane\/","title":{"rendered":"Two-Part Polyurethane Adhesive Cure"},"content":{"rendered":"

Curing Two Part Polyurethane Adhesives<\/h2>\n

Two component polyurethanes<\/a> (also called 2C PUR) have the advantages of single component polyurethane adhesives but are able to cure more quickly through larger gaps and are not dependent on moisture or heat to cure.\u00a0 Formulations can create flexible, tough materials that absorb considerable expansion, contraction stresses.<\/p>\n

Mixing Two Component Polyurethanes<\/h2>\n

Similar to two component epoxies, ratios of component A and component B can vary, the proper mix ratio and complete mixing is vital to maintain consistent properties.\u00a0 Many industrial two component polyurethanes<\/a> are available in side by side cartridges such that product can be dispensed through a static mix tip.\u00a0 This eliminates possible errors in weighing or measuring.<\/p>\n

To ensure you mix it properly:<\/p>\n

    \n
  1. Attach the correct static mix nozzle for the material.\u00a0 Static mix tips vary in shape, length, and number of elements.\u00a0 If there is any doubt, contact the adhesive manufacturer to ensure you are using the correct tip.\u00a0 Incomplete mixing will adversely affect performance.<\/li>\n
  2. Dispense a bead of the adhesive about an inch or two long onto a paper towel. The first bit coming out of the nozzle may not be completely mixed.\u00a0 Often component A is one color and component B another to visualize good mixing.<\/li>\n<\/ol>\n

    Pot Life for Polyurethane Adhesives<\/h2>\n

    Pot Life of the adhesive is loosely defined as the amount of time required for the polyurethane adhesive to double in viscosity.\u00a0 Full cure is generally 24 hours or more.\u00a0 In most cases, the critical piece of information, is not the full cure but the handling strength. Handling strength indicates is the amount of time before you can move or pack assemblies.\u00a0 Ensure you have sufficient strength before putting any stress on the bond.\u00a0 The pot life will provide some indication of how quickly the two component polyurethane sets and also indicates the length of time possible between mixing and use.<\/p>\n

    Two component polyurethanes are used in thin films for bonding metals, plastics and composites.\u00a0 They are also great for potting components.\u00a0 Thick layers of adhesive or potted sections may cure more quickly than adhesive squeezed into a thin layer. This is because of heat generated by exothermic reaction.<\/p>\n

    For more information on two component polyurethane<\/a> adhesives click here<\/a>\u00a0or Contact us<\/a>\u00a0so we can help you select the right adhesive for your application.<\/p>\n","protected":false},"excerpt":{"rendered":"

    Curing Two Part Polyurethane Adhesives Two component polyurethanes (also called 2C PUR) have the advantages of single component polyurethane adhesives but are able to cure more quickly through larger gaps and are not dependent on moisture or heat to cure.\u00a0 Formulations can create flexible, tough materials that absorb considerable expansion, contraction stresses. Mixing Two Component […]<\/p>\n","protected":false},"author":5,"featured_media":11855,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[607,612],"tags":[107,108],"class_list":["post-1466","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-adhesive-selection-and-use","category-tips","tag-polyurethane-adhesive","tag-two-component-polyurethanes"],"acf":[],"yoast_head":"\nTwo-Part Polyurethane Adhesive Cure - Permabond<\/title>\n<meta name=\"description\" content=\"Curing two part polyurethane adhesives means proper, complete mixing and an understanding of pot life to achieve optimal performance.\" \/>\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\/de\/curing-two-part-polyurethane\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Two-Part Polyurethane Adhesive Cure\" \/>\n<meta property=\"og:description\" content=\"Curing two part polyurethane adhesives means proper, complete mixing and an understanding of pot life to achieve optimal performance.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/permabond.com\/de\/curing-two-part-polyurethane\/\" \/>\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=\"2014-10-27T02:47:46+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2025-02-11T18:50:40+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/permabond.com\/wp-content\/uploads\/2022\/11\/Permabond-Default-1.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"450\" \/>\n\t<meta property=\"og:image:height\" content=\"250\" \/>\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=\"Verfasst von\" \/>\n\t<meta name=\"twitter:data1\" content=\"Laurie Gibbons\" \/>\n\t<meta name=\"twitter:label2\" content=\"Gesch\u00e4tzte Lesezeit\" \/>\n\t<meta name=\"twitter:data2\" content=\"2\u00a0Minuten\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Two-Part Polyurethane Adhesive Cure - 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