{"id":34577,"date":"2025-05-29T11:23:36","date_gmt":"2025-05-29T11:23:36","guid":{"rendered":"https:\/\/permabond.com\/?p=34577"},"modified":"2025-08-13T06:48:47","modified_gmt":"2025-08-13T06:48:47","slug":"methylene-chloride-in-adhesives","status":"publish","type":"post","link":"https:\/\/permabond.com\/es\/methylene-chloride-in-adhesives\/","title":{"rendered":"Methylene Chloride: Its Dangers and What to Use Instead"},"content":{"rendered":"

Methylene Chloride (also known as Dichloromethane) has long been used in the manufacture of adhesives. Its main purpose is that of a solvent, helping to dissolve many types of plastic and resin polymers found in adhesives such as acrylics, polyurethanes and PVC. This helps with creating a uniform adhesive structure and texture and can increase final bond strength.<\/p>\n

 <\/p>\n

Methylene chloride is often found in products used for solvent welding of plastics. This is a process whereby pieces of plastic are joined after they have been clamped together. The solvent-based adhesive can be applied along the gap between the parts, and due to its very low viscosity, quickly wicks (seeps) into the joint and starts to melt the two pieces of plastic together. This video<\/a> is a great example of solvent welding in action \u2013 although, given the dangers of methylene chloride exposure, he really should be wearing PPE!<\/p>\n

 <\/p>\n

\"\"
A good example of a product that is likely to have been solvent welded<\/figcaption><\/figure>\n

 <\/p>\n

Speaking of the dangers of methylene chloride, the US Environmental Protection Agency (EPA) in 2022 concluded<\/a> that it \u201cpresents unreasonable risk to human health,\u201d and in 2024 subsequently banned<\/a> its use in the manufacture of most industrial and consumer products. Methylene chloride is acutely dangerous – with enough exposure it can cause narcosis, brain damage and even heart failure. Longer term, the European Chemicals Agency suspects it of being carcinogenic and possibly endocrine disrupting<\/a>, with other, more minor effects ranging from skin and respiratory irritation to central nervous system issues like dizziness and headaches.<\/p>\n

 <\/p>\n

Alternatives to methylene chloride-based adhesives<\/strong><\/h3>\n

 <\/p>\n

At Permabond, we are proud to say that none of our vast range of adhesive products contain methylene chloride. As a company, we are constantly looking for ways to reduce hazards<\/a> and make our customers\u2019 workplaces safer. We offer safer alternatives to methylene chloride-based products that are just as effective.<\/p>\n

 <\/p>\n

For an alternative to solvent welding for pre-assembled plastic parts, consider Permabond UV6302. This adhesive, which cures when exposed to UV light, contains no solvents and has a very low viscosity (75 m.Pas.) This means that it will flow into a clamped joint through capillary action, just as a solvent-based product would. It offers a good shear strength on acrylic, polycarbonate and other plastics, and cures in seconds.<\/p>\n

 <\/p>\n

For an even stronger bond, you may also want to consider Permabond UV6260. Similarly to UV6302, this adhesive cures when exposed to UV light, remaining liquid beforehand. This allows for accurate alignment of parts before bonding, even once the adhesive has been applied. UV6260 cures fully even when the UV light is filtered by a colored or darkened substrate, which makes it perfect for the bonding of tinted or dark glass. It achieves highly resilient bonds on many plastics, with the plastics failing before the adhesive during product testing.<\/p>\n

 <\/p>\n

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Did you know? While rare, methylene chloride is found in trace amounts in nature, including in volcanoes and volcanic gases<\/figcaption><\/figure>\n

 <\/p>\n

More alternatives to consider<\/strong><\/h3>\n

\u00a0<\/strong><\/p>\n

Permabond offers a wide range of innovative products that can help you not only avoid methylene chloride, but also solve many common bonding challenges. One such innovation is Permabond 130UV. This is both a cyanoacrylate and a UV-curing adhesive, meaning that it cures both when exposed to UV light, along with the moisture present in the air and on most surfaces. This combination offers many advantages, the most important of which being able to cure in so-called \u2018shadow areas\u2019 not reached by UV light. Read more about the benefits of this breakthrough product here<\/a>.<\/p>\n

 <\/p>\n

If you\u2019re looking to bond nylon, a notoriously challenging substrate, look no further than Permabond TA4550<\/a>. This structural acrylic forms strong bonds on most types of nylon, including PA6, 6.6 and 12. It also bonds well to composites, metals and other plastics, and has a low odour for worker comfort. It has a thixotropic viscosity and a fast cure, with a fixture time of just 5-6 minutes.<\/p>\n

 <\/p>\n

Other products may also be of interest for replacing methylene chloride-based adhesives. Permabond 712 is a breakthrough cyanoacrylate with outstanding water and humidity resistance. Structural acrylics such as TA4204 help in situations where UV curing may not be possible. To find out more about any of our products or to discuss your application, please contact us<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"

Methylene Chloride (also known as Dichloromethane) has long been used in the manufacture of adhesives. Its main purpose is that of a solvent, helping to dissolve many types of plastic and resin polymers found in adhesives such as acrylics, polyurethanes and PVC. This helps with creating a uniform adhesive structure and texture and can increase […]<\/p>\n","protected":false},"author":609,"featured_media":34647,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[602,609],"tags":[811],"class_list":["post-34577","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-adhesive-properties","category-adhesive-selection-articles","tag-homepage-blog"],"acf":[],"yoast_head":"\nMethylene Chloride: Its Dangers and What to Use Instead<\/title>\n<meta name=\"description\" content=\"Permabond adhesives contain no methylene chloride, a dangerous substance which has been recently banned by the EPA.\" \/>\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\/es\/methylene-chloride-in-adhesives\/\" 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