As a functional filler for coatings, flake graphite is mainly used for anti-corrosion coatings, fireproof coatings, and conductive coatings.

As a anti-corrosion material, it is made with carbon black, talc powder, and oil as an anti rust primer, which has good resistance to chemical and solvent corrosion. If chemical pigments such as zinc yellow are added to the formula, its anti rust effect is better.

The expandable graphite used as a fireproof filler is a graphite interlayer compound obtained from natural graphite flakes through chemical or electrochemical treatment. Under heating conditions, the expandable graphite rapidly expands in volume (up to 300 times), suffocating the flame and generating an expanding substance to isolate the flame, delay or interrupt the flame spread. It is also non combustible, has good softness, and has high surface energy, The carbonization layer has good strength. However, the volume and dosage of the expansion body should be selected appropriately. Experiments have shown that 150um particles, 30% expansion ratio, and 5% dosage are the most suitable.

Scaled graphite can be directly used as carbon conductive fillers or can be made into composite conductive fillers for conductive coatings. However, due to the large amount of graphite flakes added, the performance of the coating becomes brittle, which limits its application. Therefore, measures are taken to further improve the conductivity of graphite and effectively reduce the amount of graphite flakes added.

Short cut fiber materials with good resistance to deformation and cracking are solvent free thick film conductive coatings with functional fillers. This coating has the characteristics of corrosion resistance, low residual stress during solidification, good resistance to matrix deformation and cracking, stable construction performance, and long-term electrostatic conductivity. It can be used for electrostatic coating on the inner wall of crude oil storage tanks. According to data reports, chemical plating technology is used to coat graphite powder with metal, such as copper, nickel, silver, etc. to prepare composite conductive fillers, Using 30% of the amount in conductive coatings not only has good conductivity, but also further improves corrosion resistance