{"id":2863,"date":"2017-11-22T16:02:15","date_gmt":"2017-11-22T16:02:15","guid":{"rendered":"https:\/\/permabond.com\/best-adhesive-plastic\/"},"modified":"2025-12-31T19:04:34","modified_gmt":"2025-12-31T19:04:34","slug":"best-adhesive-plastic","status":"publish","type":"post","link":"https:\/\/permabond.com\/fr\/best-adhesive-plastic\/","title":{"rendered":"Plastic Adhesive: Best Adhesives for Bonding Plastic"},"content":{"rendered":"

What is the best adhesive for plastic?\u00a0 <\/strong><\/h2>\n

Often the strongest glue for plastic may not be the best adhesive for plastic.\u00a0 There are a variety of factors to consider when choosing the best plastic glue.\u00a0 Obviously, bond strength is at the top.<\/p>\n

For most plastic bonding applications cyanoacrylate adhesives, UV curable adhesives, MMAs, as well as some epoxy and structural adhesives are options.\u00a0 The large variety of adhesives available can make selecting the best adhesive for plastic seem difficult.<\/p>\n

To determine which adhesive for plastic will have the highest bond strength, it is often necessary to know the exact nature of the plastic.\u00a0 The type of plastic as well as the surface condition of that plastic and what the bond must resist.<\/p>\n

General recommendations by type of adhesive chemistry.<\/h4>\n

Permabond cyanoacrylate adhesive bonds most ABS (Acrylonitrile butadiene styrene), PMMA (acrylic), Nylon, Phenolic, Polyamide, Polycarbonate, PVC (both rigid and flexible). For cyanoacrylate adhesive to show good bond strength on polyethylene or polypropylene use Permabond POP primer.<\/p>\n

All Permabond plastic bonding UV curable adhesives bond well to most ABS (Acrylonitrile butadiene styrene), Nylon, Phenolic, Polyamide, Polycarbonate, PVC (both rigid and flexible).\u00a0 Special plastic bonding UV curable adhesives are available for acrylic.<\/p>\n

One part epoxy adhesives are generally viable because the minimum cure temperature of the epoxy tends to be higher than the maximum temperature resistance of many plastics. Higher temperature resistant plastics such as PEEK and PBT can be bonded with special heat cure epoxy.<\/p>\n

Two part epoxy adhesives can be used to bond certain plastics. Special grades of plastic bonding epoxy are available from Permabond where high strength performance is required.\u00a0 Modified epoxy adhesives are two part epoxy adhesives that provide much higher flexibility than traditional two part epoxy adhesives.<\/p>\n

Structural acrylics will also bond most plastics.\u00a0 Many types are available including surface activated, bead on bead, and two component.\u00a0 MMAs (methyl methacrylate adhesives) are an effective way of bonding plastic substrates and offer impressive adhesion strength \u2013 often substrates break before the adhesive bond is broken.<\/p>\n

What about those tricky, hard-to-bond low surface energy plastics?<\/strong><\/h2>\n

Specialty grade acrylics such as Permabond TA4610<\/a> are available to bond polypropylene, polyethylene, and other polyolefins with no need for a primer.<\/p>\n

So if all of these adhesive types bond plastic, how do I choose the best adhesive for plastic?<\/strong><\/h2>\n

Many applications have more than simply bond strength as a requirement.\u00a0 Some of the other factors most engineers must address include appearance, application and cure process, chemical resistance, and temperature resistance.<\/p>\n

Appearance<\/u><\/h3>\n

UV plastic adhesives can provide invisible bonds, which are often desirable on clear plastics.\u00a0 Dual cure grades are available for colored plastics.\u00a0 Cyanoacrylates also provide clear bonds.\u00a0 For best results on dark colored plastics when using a cyanoacrylate adhesive, choose a low odor, non-blooming grade.<\/p>\n

Application and Cure process<\/u><\/h3>\n

Cyanoacrylates (instant adhesives) are desirable due to the near instantaneous fixture strength.\u00a0 However, in some applications, more time is needed to apply or accurately align components.\u00a0 UV adhesives provide that but note that many plastic bonding UV curable adhesives can also cure with visible light (normal room lighting) so if considerable time is needed for alignment or dispensing, be sure to shield the parts from light.<\/p>\n

Chemical resistance of the bond<\/u><\/h3>\n

Adhesive Type\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0 Resistance to Non-Polar Solvents<\/strong><\/p>\n