Does More Matte Mean Less Strength? FilamenTree PETG Tested

Filament manufacturers often offer matte versions of their materials, but there is usually a trade-off. With PLA, matte filaments often show reduced layer adhesion and lower strength along the Z-axis. But does the same apply to PETG? In this video, I compare three FilamenTree PETG filaments: Standard PETG, Matt-5 PETG, and Matt-7 PETG. I tested their mechanical properties, temperature resistance, creep behavior, dimensional accuracy, and print quality to find out how much performance is sacrificed for a more matte appearance. FilamenTree products shown in this video (not affiliate links): Discount code: MYTECHFUN10 – 10% off the whole order, valid from 15 September to 15 November 2026. Standard PETG: https://www.filamentree.eu/shop/petg-... Matt-5 PETG: https://www.filamentree.eu/shop/petg-... Matt-7 PETG: https://www.filamentree.eu/shop/petg-... If you'd like to support independent filament testing, consider joining my Patreon:   / mytechfun   The filament testing spreadsheet with all measured values is available to Patreon supporters and is updated regularly with new materials and test results. 0:00 Introduction 1:32 Specifications 2:27 Unboxing 3:53 Playing with temperatures (layer adhesion) 6:07 Slicer settings 6:23 Standard PETG (3D printing) 7:27 Matt-5 (3D printing) 8:11 Matt-7 (3D printing) 8:26 Surface comparison 9:15 First impressions 9:49 Shrinking 10:04 Tensile test 10:30 Layer adhesion 11:01 Shear test 11:27 Torsion test 12:04 Bending test (old) 12:38 Bending test (new) 13:01 Impact test (Izod, Charpy) 13:34 Creep test 14:26 Temperature test 14:50 All results 15:24 Conclusions #filamentree #petg #mattepetg #3dprinting #filamenttesting #3dprinter #mytechfun