What are the anticorrosion technologies for FRP storage tanks?

Glass fiber reinforced plastic storage tank is a common container for storing liquid, which has the advantages of corrosion resistance, high temperature resistance and pressure resistance, and is widely used in chemical industry, medicine, food and other industries. In order to ensure the service life and safety of FRP storage tanks, anti-corrosion treatment is needed. The following introduces several common anti-corrosion technologies for FRP storage tanks.

1. Lining anticorrosion

Anti-corrosion of lining is to coat a layer of anti-corrosion paint on the inner side of FRP storage tank to prevent the storage liquid from corroding the inner wall of storage tank. Commonly used lining anticorrosive coatings include epoxy resin, polyurethane, acrylic acid, etc. The selection of anti-corrosion coating for lining should be based on the nature and temperature of stored liquid.

2. Anti-corrosion external coating

External coating anticorrosion is to coat a layer of anticorrosive paint on the outside of FRP storage tank to prevent the external environment from corroding the storage tank. Commonly used external anticorrosive coatings include epoxy resin, polyurethane, fluorocarbon paint, etc. The selection of external anticorrosive coating should be based on the climate, temperature, humidity and other factors of storage tank environment.

3. Glass fiber reinforced layer

Glass fiber reinforced layer is a layer of glass fiber reinforced material wrapped inside and outside the glass fiber reinforced plastic storage tank to enhance the strength and corrosion resistance of the storage tank. The choice of glass fiber reinforced layer should be based on the nature and temperature of the storage liquid.

4. Thermal spraying

Thermal spraying is to spray metal powder or ceramic powder on the surface of FRP storage tank to form a hard anti-corrosion layer. The choice of thermal spraying should be based on the nature and temperature of the stored liquid.

In a word, the anticorrosion technology of FRP storage tank should be selected according to the nature, temperature and humidity of the stored liquid to ensure the service life and safety of the storage tank.