Thermoplastic Filaments: A Bonding Method Primer (.PDF Download)

July 17, 2017
Thermoplastic Filaments: A Bonding Method Primer (.PDF Download)

Regardless of object size, it’s good practice to know which methods of bonding can be employed using thermoplastic resin and how to avoid the pitfalls associated with using the wrong approach (including deformation and, in some cases, “burning” the material). Nobody wants to waste both time and money by damaging your projects. With that in mind, below are several methods of bonding designed to connect thermoplastic objects together.


Using glues to connect thermoplastic resin is probably the easiest—and certainly, the fastest—method to employ, with the most prevalent being cyanoacrylate (aka Super Glue). It should be noted that good ventilation in the workroom is needed when working with these types of glues due to the solvents they are mixed with. This type of glue should not be used with multicolor prints unless the resins contain cyanoacrylate, as it tends to “burn” or degrade the dye over time. Undyed resins are not affected, so this type of glue works well here.

Epoxy is another popular option that can be utilized and won't react to dyed resins, making it the perfect choice for multicolored prints. Epoxy is stronger than Super Glue, though it takes longer to cure. As a result, the pieces need to be clamped together during the drying process, which can take hours or even a day, depending on how much is used.

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