Are BYD cars now using cavity wax injection anti-corrosion technology?

The main purpose of injecting wax into the cavity is to prevent the vehicle from rusting during its service life. The air contact with vehicles mainly includes gas corrosion and electrochemical corrosion. This processing technology can effectively prevent the above two kinds of corrosion. The wax is heated to140 C and pumped into the body-in-white with a wax pump. Domestic manufacturers of this technology mainly include Polo, Bora, sagitar and Sat.