Fiberglass Repair Tutorial: Extend the Life of Your Amusement Equipment! Fiberglass is used in: Ferris wheels, rotating towers, indoor playgrounds, and other amusement rides, mainly for outer shells and decorative parts. Repair Steps: • Sand the damaged area and clean the surface. • Mix atomic plaster with hardener, then apply and smooth the mixture. • Once cured, sand the area with 120, 180, and 240 mesh sandpaper for a smooth finish. • Paint with matching color using a spray gun or brush. Best