Gluing 3D Printed Parts – 8 Best Ways to Bond Your 3D Prints

Description: Epoxy is a another great way to join two pieces of plastic together. It will work on most filaments. However, since it becomes hard when cured, it may not be the best option for flexible materials. It will bond flexible materials, but you will end up with some rigid area in your assembly.

The nice thing about epoxy is that you can use it both as a glue and as a filler. If there is a void that has to be filled or seems to be hidden, use epoxy.

Compared to other methods, epoxy requires more work to get a good bond. It usually comes packed in two separate containers that have to be mixed prior to bonding. One has epoxy resin, while the other one contains a hardener. These components have to be mixed in a certain ratio (check the user manual for mixing, it’s different for every type of epoxy). When thoroughly mixed, apply it to a surfaces being bonded. Attach all the pieces you want to bond and fix it properly. Depending on the mixing ratio and type of epoxy, curing can take from couple of minutes to couple of hours.

When cured, epoxy can be sanded and painted.

Bonding surface preparation: With epoxy, bonding surfaces do not have to be completely flat. It can also be applied in pretty thick layers.

Suitable materials for bonding: All materials, but will leave a rigid seem in flexible materials.

Safety: Read manual and safety instruction on the packaging before use. During mixing, some types of epoxy can develop high temperatures.

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