Often due to friction and seawater erosion of marine anchor chain, will have serious corrosion, preferably coated with wear-resistant, seawater and anti rust effect. The paint is tar varnish coating, general 2 - 3, dry film thickness reached more than 60 mu m. In the use of the ship, found the film due to reasons such as bump shedding require timely repair. In the dry environment, sand the old paint edge grinding, remove dust, marine anchor on the dirt, using the method of brushing, will be carefully painted on the chain on the asphalt coating.