How Do You Make Two Part Fiberglass Molds?
Fiberglass, a cloth material made from many fine fibers of glass, is a hard material often used to create copies of existing objects. In these copying processes, fiberglass is most often used as a casting material, meaning that the copy itself is made from fiberglass. This is useful for creating film props, automobile bodies, boat hulls and other items. However, fiberglass can also be used as a molding material to create an extra-strong mold that retains a sharp impression of the original object. The most common type of fiberglass mold is a two-part mold, which comes apart neatly to release an inflexible copy. Find a model object that you would like to create a mold for, or make your own model using craft foam and glue. Place the model object in a well-ventilated workspace, on a tabletop or counter that has been covered in plastic. Create a center line on the model that divides the model into two equal halves. You can draw the line directly onto the model with a pencil or simply envisi
