SeaCo is a replacement biomaterial for single-use plastic products made from seaweed (agarophytes) polysaccharides, the material is compostable in 2 weeks in the average compost bin. The material can be used in place of most single-use plastic products, for example, PPE, biomedical tests and appliances, disposable cutlery, and containers. The material uses one of the most plentiful natural resources on the planet, seaweed, and the process from harvesting the seaweed and extracting the sugars to casting the final product the entire process is done in the utmost sustainable fashion.