How Do You Make A Fish Cast From Plaster Of Paris Or Fiberglass?
You can make a replica of your prize fish by using plaster of Paris to capture its details. With a clay mold, the image of your fish will be incised for plaster casting. Plaster of Paris has been used for thousands of years. When water is added it undergoes a chemical reaction and becomes hard and capable of picking up details from a mold. Fiberglass and polyester resins may also be cast into a clay fish mold. Roll the clay into a 3-inch slab with a rolling pin; make it long and wide enough to accommodate your fish shape plus two inches of border all the way around the fish. Roll the clay on top of an old sheet; this will help get the clay off the table easily as you can simply peel the fabric off the clay. Place the slab onto the plywood. The wood will hold the clay securely and keep it from bending. Roll over the top of the clay surface to make a smooth top. Press the fish firmly into the clay. Push the fish down into the clay until half of it is embedded in the clay, lengthwise. Pay
