PHA (Biodegradable)
Polymaker
190–220
°C
Print Temp
25–60
°C
Bed Temp
48
°C
Max Service
Overview
Polyhydroxyalkanoate — a genuinely compostable bioplastic derived from bacterial fermentation. Unlike PLA, PHA is truly biodegradable in home compost conditions without industrial composting required. Slightly flexible and tougher than standard PLA.
Properties
Difficulty
beginner
Flexibility
semi-flex
Layer Adhesion
good
Enclosure
no
Heated Bed
no
Dry Storage
recommended
Pros
- Genuinely home-compostable
- Better toughness and impact resistance than PLA
- Good layer adhesion
- Prints similarly to PLA
- Sustainable sourcing
- Slightly flexible before breaking
Cons
- Limited color options
- Higher cost than PLA
- Some brands have inconsistent diameter
- Longer drying needed when wet
- Lower heat resistance than PLA
Best For
- Eco-conscious projects|Compostable packaging|Short-life parts|Environmental testing|Educational use
Avoid For
- Long-lived functional parts|High-temperature use|Outdoor permanent installation
Storage
Store dry with desiccant. More moisture-sensitive than PLA. Dry at 45°C for 4 hours if affected.
Brands
Polymaker PolyTerra PHA+Sunlu PHA3D-Fuel PHA