well i have been using the rustoleum primers, ive used the darker black and the grey primer, but it seems when i go to wet sand it you can see the swirl marks from wet sanding it, what should i do ? i just want it to look half way decent

 

use a finer sandpaper. are you saying your wetsanding your primer?

 

yes im wetsanding with 600 grit, thats the finest i could find locally

 

You will probably have to go to an actual bodyshop to get anything finer... that or on www.eastwood.com not sure about the price though...

 

what are you painting

are you just seeing the fine swirlmarks, or are you actually seeing scratches? swirlmarks are normal. this is why after painting cars get sanded with 1200-1600 grit paper and then get buffed to get rid of the fine scratches


600 grit sandpaper is actually a lot smoother than you should be using. the primer is there to protect and help with adhesion so you actually need some type of surface finish for the paint to stick to

 

You should be able to find finer grit sand paper (800, 1000, 1200) at a local paint store such as sherwin williams, porter paints, ICI, etc. Used a lot for laquer projects, so they carry it.

 

most of the time 400 grit should be the finest used to wetsanding primer.