Is allPHA resistant to high temperatures? 08 June 2022 10:13 Updated Yes! allPHA has a softening temperature (HDT) of 153 °C. Above this temperature, printed parts may lose their shape. Related articles Will my PHA print break down in my house? Is allPHA UV resistant? Sustainable material: PHA - 100% biobased and 100% biodegradable What is the size of the spools? Do I need to dry AllPHA before printing?