1) The workpiece should be inspected before painting. The surface should be trimmed with tools and the surface dirt should be removed. 2) The primer brush or spray and immersion should be uniform. The primer must be thoroughly stirred and diluted to the proper viscosity before use. 3) After machining, the parts and components must be rinsed or brushed with metal detergent or clean industrial gasoline before painting. Thoroughly remove oil and other dirt on the surface. 4) Fill the pitted putty (atomic ash) of the casting recess. When using, add appropriate amount of curing agent according to the product instructions. Stir well before use. 5) Perchloroethylene putty, each time the scraping is not too thick, the thickness of each scraping is generally 0.5mm, and each scraping should be done after the putty is dried. 6) After the perchloroethylene putty is dried, it can be polished. After each grinding, the surface refining and dust must be completely removed. 7) In the case of water grinding, in order to avoid rust on the machine tool zero and the surface of the component, it is advisable to use rust-proof water for grinding. 8) After polishing, if there is metal exposure, the matching primer should be repaired. 9) After the last putty is cleaned and cleaned, it must be sprayed (brushed) with a primer of vinyl chloride to improve the flatness of the paint film, thereby improving the gloss of the paint film. Tinplate Coil,Tinplate Steel,Electrolytic Tinplate Coil Cold Rolled Strip Co., Ltd. , http://www.jypicklingplate.com