Not that I'm an expert by any stretch on this, but some primers are not sandable. I remember reading it on the can (was pretty cheap stuff though). Assuming it is 'sandable primer', I would lightly scuff between layers so it adheres better. I barely ever did this, because I was too damn impatient (seems to be a trend
) to let each layer dry completely.
Funny, I just picked up an extra set of rims at the yard and painted them. I didn't even use primer, just cleaned, scuffed and shot with a can of wheel paint from AutoZone. Mounted my 155s on them and sent my origional rims off to be powder coated white to match my car. I will probably get them back in 10 days or so, depending on his back log. No rush, cause I can't find any 145/80r12s to mount on them (tire rack has Yokohama's on back order) and everyone else stopped production (except for snow tires).
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