Fiberglass boat hulls are made with the help of giant molds that give the fiberglass the needed shape. The process begins with the polishing of the molds’ insides to eliminate any unevenness of the mold’s surface. This is important for ensuring that the surface of the hull has no errors. The polishing sprays are basically layers of gel-coat that are shiny and smooth when solidified. After perfectly finished polishing, the process of putting in different core materials for making the hull is started. The manufacturers have counts of how many layers of fiberglass has to be put in the mold. Other than fiberglass, the manufacturers include resin and other materials as well. The process is carried out by hand, and the molds are designed to be rotatory to make the process easier and faster for the laborers — this an overview of the process.