| Fibreglass or plaster materials form the hard supportive layer in splints and casts. Fibreglass is lighter in weight, longer wearing, and 'breathes' better than plaster. Plaster is less expensive than fibreglass and for some uses shapes better than fibreglass. Both materials come in strips or rolls which are dipped in water and applied over a layer of cotton or synthetic padding covering the injured area. X-rays to check the healing process of an arm or leg within a splint or cast penetrate or 'see through' fibreglass better than plaster. |