plastic bumper prep

[E30_(1st Musk)_]

yes you can, but i can tell you right now that 30 year old paint wont look the same as 30 minute old paint. you will see a line where you didnt apply new paint. If you are doing any repairing to the bumper you are best off to spray the entire thing.

the best paint for the trim (IMO) is SEM black trim paint. it is designed for plastic and matches the factory color very well(you arent stuck painting every peice of black on your car afterwards so it looks right)

Im currently working on my bumpers too, retrofitting to fit an early model car... quite the task

yeah it is quite the task....
do you know if the same process is used in metal body parts.hood/fender

i mean as in the same sandpaper grit?

[Need4Speed1299]

I would suggest using the same grit profiles I listed in the other thread, but get a paint and primer meant for plastic.

[E30_(1st Musk)_]

ok.. i sanded down the bumper... i ran out of the gray primer on my fender. so i bought the black...
When i put the black primer i can see the spots that were sanded more....
could this b that only black prime does this???
(for as much as i tried. even with a sanding block some spots went deeper than others)

[Need4Speed1299]

If you have a camera take some pictures.

[E30_(1st Musk)_]

my camera dosent work. bu

these are the spots that still show up after the primer
i think therre called. high sanding spots

[E30_(1st Musk)_]

NEVERMIND!!!!i used the gray primer. and it came out perfect. black sux. now i know why people are always using the gray(yes im a noob)....

Painting in progress. ill see if i can get picss

[Need4Speed1299]

I hope all goes well for you. It looks like your dealing with a lot of high spots, bondo, and glaze.