What is the corrosion resistance of FR4 fiberglass board?

FR4 fiberglass board is a high-performance insulating material consisting of glass fiber and epoxy resin. In the industrial field, it is widely used in electronics, electrical and other industries, and its performance has been widely recognized. When this material is used, the requirements for its corrosion resistance are very high. The following FR4 fiberglass board manufacturers will introduce the corrosion resistance of FR4 fiberglass board in detail, and explore the impact of its coating on its performance.

Corrosion resistance of FR4 fiberglass board

In high temperature and humid environments, FR4 fiberglass board has excellent corrosion resistance and can prevent the growth of mold. In addition, it also has the characteristics of resistance to weak acids and alkalis and resistance to organic solvents. This is due to the corrosion resistance and chemical resistance of its epoxy resin. For example, in a high temperature and humidity environment, FR4 fiberglass board is still able to maintain a stable structure and performance because it is able to resist the erosion of water vapor and water molecules. At the same time, in the environment of various chemical media, FR4 fiberglass board can also show good corrosion resistance.

In addition, FR4 fiberglass boards are also resistant to ultraviolet light and electrolytic solutions. These characteristics can effectively prevent the erosion of sunlight, electromagnetic waves, oxidants, etc., on FR4 fiberglass board. Therefore, its corrosion resistance can be guaranteed in outdoor, sunlight, pollutants and other environmental conditions.

However, in some specific chemical media, such as acids and bases, the corrosion resistance of FR4 fiberglass board will be affected. In these media, FR4 fiberglass boards may produce chemical reactions that cause their properties to change or be damaged.

Effect of coating on corrosion resistance of FR4 fiberglass board

In order to increase the corrosion resistance of FR4 fiberglass board, surface coating is usually used. The coating is generally carried out by surface coating, dip coating, etc., to enhance the corrosion resistance of FR4 fiberglass board. In these coatings, the common coating materials are epoxy resin, polyurethane, fluorocarbon and so on. These coating materials can protect the surface and interior of FR4 fiberglass board to a certain extent, enhancing its corrosion resistance.

Specifically, the corrosion resistance of FR4 fiberglass board coated with epoxy resin is very good. Epoxy resin has good corrosion resistance and chemical corrosion resistance, can effectively protect FR4 fiberglass board. Polyurethane coated FR4 fiberglass board can enhance the hardness and wear resistance of its surface, and can effectively prevent UV erosion. The fluorocarbon coating can make the surface of FR4 fiberglass board smoother, extend its service life, and also protect it from chemical oxidation.

Sum up

In summary, FR4 fiberglass board has good corrosion resistance, and can show good corrosion resistance under high temperature, high humidity, various chemical media, sunlight, pollutants and other environmental conditions. However, in some specific chemical media, its corrosion resistance may be affected. The corrosion resistance of FR4 fiberglass board can be effectively improved by surface coating. Coating materials can be selected such as epoxy resin, polyurethane, fluorocarbon and other materials.