The project investigates chemical properties of wool waste.It defines a new value of wool using current technologies and design. The material research is focused on extraction of keratin and the usage of sustainable chemicals. The extraction is adapted to DIY laboratory tools to easily produce impure keratin. Keratin is used to refine the properties of biofilms or composites in combination with other additives. Their combination is investigated in terms of applications for the 3D printing technology. Its waterproof and fire retardant properties are reflected in coating agents for textiles.