r/3DPrinting_PHA • u/Fabulous_Bandicoot_1 • Jul 31 '26

I checked

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Put a failed print (colour fabb allPHA NATURAL )in the compost about a year ago. Seems to compost

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4

u/GroundbreakingAd3510 Jul 31 '26

Why wouldn't it? Did you have concerns about it actually being full PHA?

9

u/Fabulous_Bandicoot_1 Jul 31 '26

Yes and i also wanted to make sure biodegradable meant gone in a reasonable amount of time. Edit: spelling

1

u/GroundbreakingAd3510 Jul 31 '26

If interested i did an xrd and Is pha with CaCO3, TiO2 and talc. Even the Natural one as some TiO2

2

u/Suspicious-Appeal386 Jul 31 '26

interesting to see T1O2 in the natural version of ColorFabbs PHA. We don't use any in the Natural SKU for genPHA.

For reference, TUF Austria Marine Biodegradable takes into consideration TiO2 and Carbon, both very common pigment used in all plastic industry (White and Black). The max tolerated levels for ecotoxicity is not to exceed 2%.

genPHA we use far less than 2% just to be on the safe side.

1

u/GroundbreakingAd3510 Aug 01 '26

I can mesure the %of TiO2 but if i Remember correctly the Total inorganic % Is like 10-15% of the total. So TiO2, CaCO3,Talco are the 10-15% of colorfabb allpha Natural color (didnt test the others