First the spool when you touch the filament it's a bit more flexible than pla's like faber or colorfabb. Second it's totally matte with no reflexions, and since it's black it looks like a black rubber color. Like a car's tire.
When you flex the filament it doesn't snap, and it take's quite a while before it starts to break and show a bit of 'grey'. It actually didn't snap and I had to cut it to set the spool ready.
Got the good camera out and recorder a bit
There's some imperfections on the fan top holder (this it's for um2 hotend on umo) because I actually forgot to measure the filament. It's a consistent 1.71-1.72 So I just changed the flow to 103 to balance the ratio. So far it's printing amazing, much better than ngen by a mile.
I'm testing 210-220C at 60-70mm/s 0.4 nozzle 60C bed with my windowwasher + one very very short puff of hairspray to clean the bed. So far, fan it's been at 160 (that it's like a 30% of normal fans) and there's no sign of any warping. I'm waiting for layer 193 when the big bridges start. But so far, amazing look/fell. And it's 100% bio, resist 110-120C and it's matte! Can't wait to start doing keychains with this color. Very promising.
Oh also, bioFila PlaTec costs 49,90€ for 600gr. This Extrudr Green-TEC Black costs 56€ for a full kilo. And they have a few more colors. Can't wait to test their white-pearl one. Specially since I know now how matte it's. It will do some nice stuff. Oh also, it has european FDA for food contact.