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It's semi-common knowledge that PLA and PETG don't bond together when printing. Is there a resource of which plastics do and don't bond together?
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The original was posted on /r/3dprinting by /u/Captain_Pumpkinhead on 2026-05-11 17:11:59+00:00.


Multi-nozzle printers open a lot of options, like using PETG as a support for PLA, so that they disconnect easily when you take them off the print bed.

But what about other plastics? Will TPU bond to PLA? If I want a print that's partially TPU and partially PLA, can I just print them together, or do I need to work a physical anchor/attachment into the model?

Does anyone know if there's a good resource about what plastics do and don't bond to each other?

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