The working area will be clear and free of all contaminants. Moisture must be eliminated from the working area for successful GRP application. All hydrocarbon substances such as oils and lubricants will be removed for perfect ad-hesion. Any other surface impurities will also be removed. Cleaning may include brooms brushes vacuum cleaners for the removal of heavy and fine particles.

Materials will be stored in a manner to avoid spills causing staining. Edges will chamfer, and corners rounded with the prescribed filler before the lining is applied. Imperfections will be rectified with the use of resins suitable for the GRP application.