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Polymaker HT-PLA vs HT-PLA-GF: High-Temperature PLA Tested!

In this video, I test Polymaker HT-PLA and HT-PLA-GF, two high-temperature PLA-based filaments that promise excellent mechanical strength and heat resistance—possibly challenging the boundaries of what PLA is known for. Product page (affiliate): https://us.polymaker.com/products/pol... I go through everything from unboxing and filament behavior to detailed mechanical tests like tensile, impact, bending, and creep testing. I also cover annealing, temperature resistance, and layer adhesion to give you a complete overview of how these materials perform. 📌 Chapters 0:00 Introduction 1:10 Specifications 4:06 Unboxing 5:05 Filament bending test 6:12 Slicer settings 6:25 3D printing 8:18 Print quality 9:10 Annealing 9:40 Shrinking 10:13 Tensile test 11:25 Layer adhesion 13:08 Shear test 13:26 Twist test 13:46 Impact test 14:22 Impact test 2 (colors) 15:13 Bending test (50mm span) 15:47 Bending test (64mm span) 16:38 Creep test 17:59 Temperature test 18:50 Temperature test No2 19:27 All results 20:02 Conclusions 👍 If you find this video helpful, please give it a like and consider subscribing to the channel for more 3D printing material tests, comparisons, and reviews. It helps the channel a lot! 💬 Feel free to leave a comment if you have questions or if you've tested these materials yourself—I’d love to hear your experience. 🙏 Support me on Patreon to get early access to videos and exclusive access to the full test result spreadsheet with all previously tested materials:   / mytechfun   Thanks for watching! #3DPrinting #Polymaker #HTPLA #FilamentTest #EngineeringMaterials