{"id":223,"date":"2024-05-28T13:35:25","date_gmt":"2024-05-28T11:35:25","guid":{"rendered":"https:\/\/www.buehnen.de\/international\/blog\/?p=223"},"modified":"2024-04-08T13:37:22","modified_gmt":"2024-04-08T11:37:22","slug":"pur-combining-the-advantages-of-two-adhesive-worlds","status":"publish","type":"post","link":"https:\/\/www.buehnen.de\/international\/blog\/2024\/05\/28\/pur-combining-the-advantages-of-two-adhesive-worlds\/","title":{"rendered":"PUR \u2013 combining the advantages of two adhesive worlds"},"content":{"rendered":"\n

What makes PUR hot-melt adhesives so special?<\/strong><\/p>\n\n\n\n

Polyurethane hot-melt adhesives are characterised by the fact that they combine the advantages of physically setting hot-melt adhesives with their high process speeds, with those of reactive one\/two-component adhesives and their high bond strengths.<\/p>\n\n\n\n

You can find more expert knowledge in our PUR glossary entry.<\/a><\/strong><\/p>\n\n\n\n

This combination of properties has led to the use of polyurethane hot-melt adhesives in a variety of applications, e.g. in the automotive industry, filter industry, wood and furniture construction, book-binding, packaging industry and textile industry, to name just a few of the most important ones. Polyurethane hot-melt adhesives are used both in surface application for lamination, for example in the textile industry and in bead application for clip bonding in the automotive industry.<\/p>\n\n\n\n

Reactive properties for lasting connections<\/strong><\/p>\n\n\n\n

The reactive properties of PUR hot-melt adhesives play a decisive role in their performance.  After the adhesive has been applied and cooled, the chemical process of curing and cross-linking begins. This reaction results in a strong and durable connection that can withstand extreme conditions. The cross-linking and curing of the adhesive occurs under moisture absorption, which means that environmental conditions can influence the speed and quality.  <\/p>\n\n\n\n

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Combination of reactive properties with the advantages of standard hot-melt adhesives<\/strong><\/strong><\/p>\n<\/div><\/div>\n\n\n\n

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PUR have an extremely wide<\/strong> adhesion spectrum. This is because these hot-melt adhesives <\/strong>have very low molecular weightwhen applied and joined, which means they have good adhesion properties to many different plastics, for example ABS, PVC, polycarbonate, polystyrene. Reactive PUR hot-melt adhesives provide excellent adhesion to a variety of materials, including plastic, wood and more. This results in long-lasting connections.<\/p>\n<\/div><\/div>\n\n\n\n

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High cohesion<\/strong>\u00a0enables constructive bonding. The reactive curing of PUR hot-melt adhesives leads to a strong and lasting connection between the bonded materials. This connection can provide resistance to tensile forces, shear forces and environmental influences.<\/p>\n\n\n\n

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High temperature resistance in both cold and heat enables, for example, use in the automotive industry.<\/p>\n\n\n\n

<\/p>\n<\/div><\/div>\n\n\n\n

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Resistance to plasticisers<\/strong>, oils and solvents enables bonding of soft PVC demanding filter applications.<\/p>\n\n\n\n

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High resistance<\/strong>\u00a0to aging <\/strong>of the bond. Reactive PUR hot-melt adhesives are often resistant to UV radiation, moisture and other environmental influences, making them suitable for outdoor use.<\/p>\n\n\n\n

<\/p>\n<\/div><\/div>\n","protected":false},"excerpt":{"rendered":"

What makes PUR hot-melt adhesives so special? They combine the advantages of two adhesive worlds. These adhesives have found a permanent place in many industrial sectors. <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[25],"tags":[],"class_list":["post-223","post","type-post","status-publish","format-standard","hentry","category-glossary"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.buehnen.de\/international\/blog\/wp-json\/wp\/v2\/posts\/223","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.buehnen.de\/international\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.buehnen.de\/international\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.buehnen.de\/international\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.buehnen.de\/international\/blog\/wp-json\/wp\/v2\/comments?post=223"}],"version-history":[{"count":1,"href":"https:\/\/www.buehnen.de\/international\/blog\/wp-json\/wp\/v2\/posts\/223\/revisions"}],"predecessor-version":[{"id":224,"href":"https:\/\/www.buehnen.de\/international\/blog\/wp-json\/wp\/v2\/posts\/223\/revisions\/224"}],"wp:attachment":[{"href":"https:\/\/www.buehnen.de\/international\/blog\/wp-json\/wp\/v2\/media?parent=223"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.buehnen.de\/international\/blog\/wp-json\/wp\/v2\/categories?post=223"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.buehnen.de\/international\/blog\/wp-json\/wp\/v2\/tags?post=223"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}