Interestingly my white filament has gone ‘brittle’ on me. I thought the discoloration was heat on the extruder but after removing the spool its in the filament. Streaks of yellowish/brownish color and a slight tug snaps the filament. Very strange, order in for another. In the mean time I’m hoping to try out this PET+ stuff from @MadeSolid
The MadeSolid PET+ is great stuff - print hot (245-260) and kill your downward cooling fan (if you have one) for better layer adhesion
Your filament is probably suffering from moisture. you may be able to dry it, if it’s not too far gone.
Yes - Ive printed with Tglasse. Ive printed in both white and red PET+ from MadeSolid - the white seemed to work a little better for me than the red, but both worked. The red seemed to have some strength issues where parts got thinner (it could be I havent found the exact magic settings yet). Tglasse seems to work better for me than PET+, but both filaments are useful . Id have to give the edge to Tglasse tho for layer adhesion, part strength & durability. Ive only used the clear so far, want to try the Ruby soon.
I should add - I have a Rep2 & no heated bed, so I use PLA for my presentation prints & PET+ Tglasse for mechanical/structural part prints that others might use ABS for.