The unique silicon carbon rod coating technology of Dereizi  is a synthetic surface film coated on the surface of the heating part after the silicon carbon rod is made. It plays a role in prolonging the service life of the silicon carbide rod in the use environment, and can effectively block the gas that accelerates the aging of the silicon carbide rod, and protect the silicon carbide rod from being corroded. The details are as follows:

T coating: a coating used to reduce the oxidation rate under normal use . It can prolong the service life of silicon carbide rods by 30-60%, especially in high temperature use.

D Coating: This coating is used in the presence of nitrogen.

S coating: This coating is used on float glass three-phase rods.

Q coating: This coating is used in the case of water vapor and hydrogen.