Foam Materials

Foam materials are generally constructed by bonding short and long fibres together, mechanically, thermally or chemically into a sheet or fabric. Foam materials are being used in many industries; fluid absorbing sponges, insulation, filtration, medical applications, horticulture, padding and packaging.

Nanocellulose Foams

Cass Materials’ unique foam material consisting of 100% nanocellulose, no binders or other additives. This biobased foam material is totally biodegradable, the process is environmentally friendly and uses non-hazardous chemicals.

Foam Composites

Foam composites refers to materials made up of two of more different fibres. This image shows a nonwoven material consisting of 75% rayon fibre and 25% nanocellulose. Other composites can be made from recycled cardboard, paper or any other cellulosic sources.


The foams and composites, with their nano-porosity and extremely large three-dimensional fibrous surface area, allows it to absorb fluid more than 30 times its own dry weight. A density of less than 0.05 g/cm3 makes it an extremely light weight material. 


The foams and composites keep their integrity when washed, therefore can be reused. 


With very large porosity for water holding capacity and aeration, Cass’ foams are excellent for growing micro greens or other herbs. The foams are home compostable or combustible depending or usage.

Holds 30x its own weight in 0.9% saline

Washable and reusable while maintaining structural integrity