you didn't say what kind of paint you're using but maybe this will help you.
Well there are a few things that you could have done wrong. When you spray overlap the previous pass by 50 %. That means the center of the spray nozzle pointed at the edge of the previous pass. this will also prevent water melon striping.
Don't spray the final coats too wet. If you do the metallic will shift and be blotchy. Keep your paint gun about 8 to 10 " from the panel. don't forget to overlap 50%. Let the paint dry or (flash) between coats. Touch the paint on the masking paper. If your finger has wet paint on it wait longer. if the pait is stringy Wait. The paint should be sticky but not transfer to your finger.
if you do see some blotching. Increase the air presure slightly and "fog" more color over the areas. Any increase in air pressure means you will have to move a little faster. going too slow will also cause blotching. and runs.( putting it on to wet) too fast will cause it to be too dry.( Fuzzy or hazy looking.) :anim_25: Practice, practice, practice. makes perfect.:anim_25:
Spraying metallic is much easier if you use base/clear.
As oldcarnut56 said you don't want to lay the metallic on too wet. That's kind of impossible with a single stage, and much easier with base/clear, as you can and should spray the color on the "dry" side. Then spray the wet coats with the clear.
The key is to be very consistent in how you spray the metallic. Which is good on anything, just double important on metallic and translucent paint like candy or pearl.
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