A wide red screw cap seen from above at an angle, its outer rim deeply ribbed and its interior a smooth glossy disc.
  • The cap from directly above, its moulded cross-shaped ribs and glossy pearlescent surface filling the frame.

Polyhydroxyalkanoate caps are molded plastic caps produced from methane-eating bacteria (methanotrophs). The caps are marine degradable, home-compostable, and serve as an eco-friendly alternative to traditional, hard-to-recycle plastic caps.

Composition

Polyhydroxyalkanoate (PHA) biopolymer

Handling Notes

  • Ideal for injection-molded products such as bottle caps, jars, and other small containers

Applications in Craft

Keywords

Provenance

Mango Materials, Inc., Oakland, California. Acquired 2024.

In Use

Have you used this material?

Please contact Mellanee Goodman, Program Director, Curator, and Materials Specialist, to start a conversation about submitting your work for inclusion on this site.

mgoodman@centerforcraft.org