ColorFabb ALLPHA Filament

Several months ago, Fillamentum launched NonOilen, a filament that is produced entirely without petroleum and can be used in the garden without leaving microplastics. In June 2022, ColorFabb launched a similar product that is Polymer based completely different. We would like to introduce you to the brand new ALLPLA from ColorFabb and compare it with NonOlien.


What is PHA?

Some already know ColorFabb's PLA/PHA blend, which has better properties than standard PLA, but what exactly is PHA and what makes it so special?

It is produced by bacterial fermentation. Polyhydroxyalkanoate polymers (PHA) are produced by microorganisms (bacteria) and can also be completely eaten (decomposed) by microorganisms. Overfeeding the bacteria creates “fat cells”. PHA is a natural polymer that has not been chemically modified. PHA is fully biodegradable in your garden and therefore minimizes environmental pollution. The well-known PLA, on the other hand, can only be decomposed in an industrial plant at higher heat. PHA materials do not release toxic microplastics into the environment. PHA is not the same as PHA, as different types of bacteria also produce different types of PHA. It is difficult to use a PHA alone to make a filament. ColorFabb has therefore combined different types of PHA to produce the filament. ColorFabb only adds bio-friendly additives to improve material properties, effects and colors.

Even if all cost reduction potentials are exhausted, conventional PHA from microbial fermentation will be three times more expensive than bulk petrochemical polymers.

More information can be found here.



Filament properties:

  • Is made from various bacteria without petroleum
  • Is decomposed on the home compost by bacteria without microplastics
  • PHA is biodegradable in salt and fresh water
  • PHA is nontoxic and foodsafe
  • PHA shows exceptional layer to layer adhesion in most printing conditions
  • The material feels tough and capable and is stable to very high temperatures (>120C)
  • Unlike other filaments, PHA needs to be printed on a cold bed!
  • PHA have a low permeation of water. Drying is not required before printing
  • PHA is completely jerk-free when printing
  • PHA is not suitable for outdoor use, because it is not UV stable
  • PHAs are soluble in halogenated solvents such chloroform, dichloromethane or dichloroethane
  • Density: 1,24g/cm3
  • Diameter Tolerance: ± 0.1 mm, available in 1.75mm and 2.85mm diameter

Download PDF: ColorFabb ALLPHA Technical Datasheet



ColorFabb Allpha is currently only available in three colors and these are:

  • Black
  • Natural
  • White

 According to ColorFabb, the color palette is to be further expanded.


Printing guid:

The parameters depend on the nozzle diameter and the layer height. Here are the parameters for our Ultimaker Cura Visual Normal printing profile with a layer height of 0.2mm:


My Test environment:

  • Printer: Weedo X40 PRO (with X40-Community Coolingsystem and Firmware X40 PRO)
  • Nozzle: 0,4mm, Zodiac MK8 PRO
  • Build platform: BuildTak PEI Film
  • Slicer: Ultimaker Cura 5.0.0 with Weedo X40 PRO Configuration and Weedo X40 Thumbnail plugin


Weedo X40 Visual Normal printing profile for Cura 5.X


Layer height


Initial layer height


Line width


Initial layer line width




Wall Thickness


Optimize Wall Printing Order


Wall Ordering

To Inside



Top/Bootom Thickness


Monotonic Top/Bottom Order




Infill Density


Infill Line Distance


Infill Pattern




Printing Temperature


Build Plate Temperature




Horizontal Scaling Factor Shrinkage Compensation
(Only Cura 5.X)


Vertical Scaling Factor Shringage Compensation
(Only Cura 5.X)


Enable Linear Advance
(Needs Linear Advance Settings Plugin)

(If Firmware supports)

Linear Advance Factor
(Needs Linear Advance Settings Plugin)



Print Speed


Wall Speed


Top/Bottom Speed


Skirt/Brim Speed


Enable Acceleration Control


Enable Jerk Control




Retraction Distance
(Bowden tube)


Retraction Speed


Combing Mode

Not in Skin

Retract Before Outer Wall


Z Hop When Retracted




Enable Print Cooling


Initial Fan Spped


Regular Fan Speed at Layer



Support (If needed)

Support Z Distance


Support X/Y Distance



Build Plate Adhesion

Build Plate Adhesion Type


Brim Width




Enable Bridge Settings


Bridge Has Multiple Layers



Tip for removing the print objects:

With larger parts, the adhesion to the print bed can become extreme and damage the component or print bed. For large parts, ColorFabb recommends heating the print bed to 90°C and holding it for about 15 minutes. The heat induces crystallization, which makes it easier to detach the printed part from the plate. Brim should not be used on small parts.


No stringing


Warping and unsightly edges


Test print for Linear advance k-factor


Maybe I haven't set the right bridge parameters in Cura yet, I can only print bridges up to 20mm in length. Other filaments can do this much better.


Material for support structures

The Beakeaway support structure works. The values for 0.2mm layer height can be found in the guide. Dissolvable support compatibility has yet to be tested.



Multi-material compatibility

The compatibility test with different filaments has not yet been carried out.



ColorFabb ALLPHA vs. Fillamentum NonOilen

ALPHA and NonOlien are both filaments that leave no microplastic behind. NonOlien offers print quality that does not differ from other filaments and can also be recycled very well. AllPHA has extremely strong lay adhesion and can withstand high temperatures.

You have to decide for yourself what is better for you.



Filament ColorFabb ALLPHA Fillamentum NonOilen Tarfuse ENVI 1
Polymer base PHA Blend PLA/PHB Blend unknown
Density 1,24 g/cm³ 1,20 g/cm³ 1,30 g/cm³
Diameter toleranze +/-0,1 mm +/-0,05 mm  unknown
Tensile modulus 2519 MPa (ISO 527) 1900 MPa (ISO 527) 2840 MPa
Tensile strength 24 MPa (ISO 527) 31,2 MPa (ISO 527) 33 MPa
Elongation at break 4,5% 7,7% 1,8%
Charpy impact strength, unnotched 25,4 kJ/m² (ISO 179) 25.6 kJ/m² (ISO 179)
Charpy impact strength, notched 3,4 kJ/m²  (ISO 179) 2.4 kJ/m²  (ISO 179) unknown
Hardness 62 Shore D (ISO 7619) 71 Shore D (ISO 868) unknown
Heat distortion temperature 153°C (ISO 75) 119°C (ISO 75) unknown 
Safe for food-contact applications  Yes Yes unknown
Recyclability Unkown Recyclable, many times without loss of properties unknown
Decomposition in compost Yes 3x faster than PLA  unknown
Ecological damage No microplastics No microplastics No microplastics
Price (2022-06-04)
64,00 EUR/kg 53,34 EUR/kg 34,90 EUR/kg
Benchy print result


Source: Manufacturer's website, no guarantee of completeness and correctness


According to the data, ALLPHA is stiffer and more heat-resistant, but not quite as strong as NonOilen.


As usual, you can find my reviews below Tested Filament

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