Fiberglass sculpture crafts can be divided into round sculpture and relief sculpture according to the shape. In the subdivisions are figures, animal sculptures, cartoon sculptures, shopping malls and beautiful sculptures, campus reliefs, urban sculptures, European-style architectural sculptures, abstract art, and sketch sculptures. Whether it is a round sculpture or a relief sculpture, the production process is different. Only by grasping the key steps, you can make beautiful and unique glass and steel sculptures.
Step 1: Design and mold:
The outstanding sculpture work needs a good design foundation. The design of Fiberglass sculpture should consider the characteristics of its materials and craftsmanship.
The glass fiber reinforced plastic process is easy to form beautiful streamlined products, which can highlight the modern and periodical sense of the work. In the design, the arc and streamline can be preferentially used.
In addition, because Fiberglass has the advantages of light weight and high strength, it can produce works with strong dynamics and small support area. Sometimes glass fiber reinforced plastic sculptures need to be coated with the surface of the gel coat. Since the gel coat has self-leveling properties, the gel coat layer has a certain leveling effect under the action of external tension during curing. Under this condition, it is not suitable for fine texture. These should be considered when designing.
The original model of traditional Fiberglass sculpture can be modeled with clay or foam. Ordinary molds are completed by professionals. After the sculpture work is completed, the glass fiber reinforced plastic sculpture mold can be stopped after natural air drying and a certain strength.
With the development of science and technology, 3D printing technology has been continuously used. At present, 3D printing technology is often used in the molding stage of Fiberglass, but this requires professional sculpture designers and engineers to operate. Different sculptures choose different molding methods.
In addition to sculpture design, the mold stage is the basis of sculpture molding, and the mold basically determines the overall shape of the sculpture.
Step 2: Manufacturing of Fiberglass
Fiberglass sculpture is manufactured by hand lay-up. Before manufacturing, it will start from the perspective of easy molding and demolding according to the shape characteristics of the sculpture, and the mold can be synthesized into several units and turned. According to this, unit products are formed, and then they are combined into a whole. Finally, the whole product is disposed and painted, and the overall Fiberglass molding is completed.
The third step: mold manufacturing
Mold manufacturing is the key to Fiberglass molding, and GRP sculpture molds often use plaster. One of the better manufacturing methods for Fiberglass sculpture molds is to use silicone rubber and Fiberglass materials to make molds.
1. First, the technician will decide the treatment method of the clay surface according to various factors.
2. According to customer requirements, molds made of different materials. Such as silicone mold, plaster mold, or glass steel mold. Several molds each have advantages and disadvantages. Such as silicone mold, its cost is extremely high, but the finished product turned out, its effect is the best. The Fiberglass mold can also be used multiple times, and the finished product is also good, but it has the disadvantage of variability. The plaster mold is disposable and low in cost.
3. When making the mold, the technician needs to divide the mold into two or more pieces according to the shape of the product. But its purpose is not to damage the mold, easy installation and easy splicing.
The detailed mold manufacturing method is: apply the prepared silicone rubber to the original mold several times, and the silicone rubber layer should be more than 1mm. After the silicone rubber is crosslinked, a glass fiber reinforced plastic layer having a thickness of about 3 mm is formed on the silicone rubber. After the Fiberglass is cured, the entire mold is cut along the divided unit blocks. When cutting, pay attention to cutting the Fiberglass layer and the silicone rubber layer at the same time.
The connecting ribs are manufactured between the unit blocks, and a bit groove should be set at the connecting ribs to ensure that the unit block mold is combined into a whole through the connecting ribs. After the above work is completed, the Fiberglass unit block is demolded, and then the silicone rubber layer is removed, and the removed silicone rubber block is immediately returned to the Fiberglass unit mold.
Dust removal of the original mold → silicone rubber preparation → silicone rubber layer manufacturing → fiberglass reinforced plastic layer manufacturing → mold splitting → link rib manufacturing → release and assembly mold.