This Chrome paint is NOT Nano Chome painting. It is 1K Chrome fine paint. And the color can be changed by varnish with pigment.The regula HVLP spray gun can be used for spraying. The ratio is 1:3. It mean 1 liter paint need 3 liters thinner. After spray, you dry 30 minutes, 60-65 degree C and then you can off the clearcoat to make the good protection. If you want change the color, you can add pigment with varnish and then spray of the silver fine layer.