Materials > Bioplastics > FlexSea Compostable Biopolymers
featured company: FlexSea Ltd.

FlexSea Compostable Biopolymers

About FlexSea

Founded in London in 2021, FlexSea develops novel seaweed-derived biomaterials that can replace single-use plastics in various industries.

Their materials are derived from naturally occurring seaweed biopolymers from widely cultivated red seaweed strains.

These materials are truly home compostable, unlike most other bioplastics available in the market. They decompose in natural environments such as soil, marine ecosystems, and freshwater systems, without leaving behind any chemical debris or microplastic.

Products and Applications

FlexSea’s biomaterials span across both thin films and rigids/semi-rigids, and can replace single-use plastic packaging in dry and low-moisture applications. Their excellent gas permeation and lipid barriers make FlexSea’s biomaterials particularly suited to cosmetics, consumables and dry food applications.

Plug and play into today’s existing plastic manufacturing and packaging lines, FlexSea materials are designed to disrupt how single-use plastic packaging interacts with the environment after it has been thrown away.

All FlexSea biomaterials are truly home-compostable, degrading in the environment in natural conditions in a matter of weeks, post-disposal, while remaining virtually stable in normal storage conditions over time.

Learn More
More Seaweed Based Polymers

Searo Natural Polymers

Searo is a seaweed-based polymer that can be used in a diverse range of applications, including food packaging, cosmetics and apparel.


Sway Flexible Packaging

Sway offers an innovative seaweed-based packaging solution that can replace traditional petroleum-based plastics.