What Is Resin Coating?
Resin coating is a sheet of synthetic resin, such as polycarbonate or vinyl chloride.
Depending on the type of material, composition, shape, and color tone, a wide variety of functions can be achieved. Resin coating is used in an extremely wide range of applications, from everyday items such as displays and showcases to construction materials, barn materials, and semiconductor manufacturing equipment.
Uses of Resin Coating
Resin coating is used in a wide range of applications, from general applications that we see in our daily lives to industrial applications such as construction, livestock breeding, and semiconductor manufacturing equipment. Typical applications are as follows:
1. Polycarbonate Resin Coating
Polycarbonate coating plates have superior impact resistance and mechanical strength among the many resin coating plates. It also has excellent weather resistance, which is necessary for outdoor use, and its self-extinguishing properties are used in building materials such as carports, corrugated sheets, and roofing materials. Its impact resistance is also used in bulletproof glass.
2. Vinyl Chloride Resin Coating
Vinyl chloride plate is a resin coating with a long history of use. In addition to their superior strength, they are easy to process and are used in a wide variety of fields, such as stationery and displays. It is also used in semiconductor manufacturing equipment because it can be given high chemical resistance and flame retardant in a wide variety of resin formulations.
3. Polyethylene Terephthalate Resin Coating
Polyethylene terephthalate resin, also known as PET resin, is the raw material for the PET bottles we often see in everyday life. Resin Coating made from this resin is relatively inexpensive and easy to process. Another advantage is that, when completely combusted, it decomposes into carbon dioxide and water without producing toxic gases.
4. ABS Resin Coating
ABS resin is a copolymer of acrylonitrile, butadiene, and styrene and has excellent chemical resistance. Plates molded from it can be painted and are used in electrical equipment and automotive parts.
5. Phenolic Resin Coating
Most phenolic resin coating is formed by impregnating wood with resin and then heating it under vacuum conditions. Although relatively expensive, their insulating properties and strength are utilized as plates for transformers and switchboards.
6. Melamine Resin Coating
Melamine resin coating is often used as a decorative laminate for furniture and kitchens. Paper is impregnated with melamine resin and heated to form. It is also called a synonym for decorative plate because of its high heat resistance and scratch resistance.
Characteristics of Resin Coatings
Resin coating is classified into two main categories according to the type of resin used: thermoplastic coating, which is molded from a material that softens when heated; and thermosetting coating, which is molded from a material that softens when heated.
The second is thermosetting resin coating, which is made of molded resin that hardens when heated. Since each has different characteristics, the appropriate one should be selected in consideration of the intended use.
1. Thermoplastic Resin Coating
Thermoplastic resin has the property of softening and fluidizing when heated to the temperature at which each resin melts, and hardening when cooled. Although it may seem that thermoplastics have low heat resistance when you hear that they are softened by heat, on the other hand, they can be processed into complex shapes by heat.
It also has advantages, such as the ability to recycle scrap materials generated in the manufacturing process and materials recovered after general distribution. Typical thermoplastic resin coating includes polycarbonate, vinyl chloride, polyethylene terephthalate, and ABS resin plates.
2. Thermosetting Resin Coating
Thermosetting resins harden when heated to a temperature at which the resin or curing agent initiates a cross-linking reaction. Once cured, they do not soften when heat is applied again. Phenolic resin and melamine resin plates are typical examples of thermosetting Resin Coating.
Other Information on Resin Coating
1. Resin Coating Forming Method
When molding resin coating, it is necessary to select a molding method suitable for the characteristics of each resin. For example, extrusion molding is often used for thermoplastic resins, such as polycarbonate and polyvinyl chloride.
Extrusion molding is a molding method in which resins are fed into an extruder, heated and mixed to a molten state, and then cooled by cooling rolls to adjust thickness and other qualities.
On the other hand, press molding is often used for thermosetting resins, such as phenol and melamine resins. In press molding, the wood material is impregnated with liquid resin and hardener before it is cured on paper, and then hardened by heat and pressure in a press.