Broadly speaking, paint-free transparent paint is called car varnish. Car paint varnish is mainly used with the background paint, in the process it is inseparable with the base paint, generally spray the first car paint primer, and then spray varnish, the varnish provides gloss and a protective layer for the base paint. Base paint is generally metallic flash paint, paint can not be too thick (usually 10-15 microns) otherwise it will affect the flash effect. Varnish layer thickness is generally 35-45 microns, divided into self-dry type and drying type. The original coating is generally high temperature paint, baking temperature between 120 ℃ and 150 ℃, time is half an hour. Self-drying varnish is generally used in the maintenance industry, it can be both dry at room temperature, but also low temperature baking, baking temperature can be set to 50 ℃ -80 ℃.
