Metallic implants have been used widely in a lot of orthopaedic applications. Titanium, Ceramics, medical grade titanium and other metal alloys are inserted in large bones designed as artificial joints. Plates and bars are also attached to bones in order to facilitate healing of fractured bones. The disadvantages of metal implants however are corrosion and the release of ions, so there is need for finding new orthopaedic materials like composites, which have a closer density to the natural bone too. This project is part of European project NEWBONE and it is based on the manufacturing and processing of glass fiber reinforced composite and the assessment of its properties. The goal of the project is to manufacture composite parts in the lab in different designs and dimensions which are suitable for mechanical and chemical tests. The theoretical work deals with the processing methods and the medical composites, medical devices, plastics, reinforcement of medical composites, PEEK and carbon fibers and other materials. The glass fibers are impregnated with dental curing resin. The residual void content, glass fiber content and chemical and mechanical properties are estimated by ASTM standard methods. Results are resented according to evaluation of composite performance mechanically and chemically and show the best choice of composite parts in order to improve future use of orthopaedic applications.