I spray straight from the can. Stynylrez Is the only one have shot with an airbrush. I used the black and you see here my results and issues I was having.
Mr Surfacer and Tamiya was both rattle can straight.
I used Mr Surfacer on my VW truck interior and Tamiya for the exterior. When I took off the Tamiya top coat green color with ipa it took the primer off as well. Mr Surfacer did not come off.