Bio-resins traditionally show poor mechanical properties at higher temperatures and often come under pressure from being food-source derived. The BiomeHT range offers unrivalled heat resistance whilst retaining impressive environmental credentials. The HT family of products  offer a higher temperature stability whilst being 100% biodegradable and compostable.
Biome is continually developing this range of heat stable products. The latest addition to the HT family is BiomeHTX: a fibre-reinforced grade, designed specifically to produce stiff and strong injection-moulded parts.




When temperature resistance is paramount, BiomeHT90 is the answer. With a softening point of 110°C, some 40–50°C higher than competitive bioplastics, BiomeHT90 is the perfect choice for food service and electronics applications.

BiomeHT90 - Injection

The perfect solution for high temperature resistant, injection moulded products.

BiomeHT90 - Extrusion

The right choice for high temperature resistant sheet extrusion and thermoforming applications. Proven to be stiffer than oil-based PS, allowing the convertor to down gauge without affecting mechanical properties or functionality.

BiomeHTX (450)

The latest addition to the BiomeHT range. BiomeHTX (450) is a biodegradable and compostable polymer grade. Industrially compostable with a potential to certify to 3.2mm (according to ASTM D6400 and EN13432 standards, certified thickness will be dependant on geometry of application). This reinforced polymer made from a blend of renewable plant feedstocks produces strong, rigid parts. Offers a Heat Deflection Temperature (HDT) of 85°C/185°F without the need for in-mould or post-mould treatment.

Temperature resistance

Our biopolymers show unrivalled heat resistance.

VICAT (A) measures the temperature at which the surface of a test sample starts to soften significantly. Vicat-A Test method ISO306. 

HT90110°C (230°F)
130°C (266°F)


Key properties


  • HT90 is made from a non-food derived, GM-free source
  • BiomeHTX (450) is derived from plant starches, free from GMOs
  • Rigid materials with softening point up in excess of 100°C, which is 40°C higher than other standard bio-materials
  • BiomeHT90 is suitable for injection moulding as well as sheet extrusion and thermoforming
  • Compostable, with a bio-based carbon content greater than 50%
  • Suitable for food service products, hot beverages, cosmetics, electrical and other heat sensitive applications
  • EU and FDA food contact approved




  • Processes well on conventional injection moulding machines (hot and cold runner systems)
  • Can be injection moulded with characteristics similar to ABS
  • Comparable cycle times can be achieved compared to conventional polymers
  • Low shrinkage rate (0-0.5%) compared to conventional polymers
  • Recycability: waste can be recycled and used with virgin material



  • We aim for the highest possible bio-based content in all of our products and are continually developing our range to improve sustainability.
  • Currently our BiomeHT range has a bio-based carbon content greater than 50%.
  • These products are certified 100% biodegradable and compostable according to EN 13432 and ASTM D6400 standards.