What grit sand paper ?

[my83horse]

Most imperfections are out and ready for sealer but what grit should I use as a final blocking ? Right now I am blocking with 600 and the primer is starting to have a sheen , is that good or bad for the sealer ? I heard scratch lines can show through the paint so what grit is going to show lines and which ones will not ? i plan on going with 2 coats of sealer 2-3 coats of a single stage bright red and probably 2 clears. Thanks

[86capriASC]

I have been told by a friend(who does a lot of resto jobs and also used to work as a body man for a classic Vette place)to use 400 grit. The paint has to have something to stick to. You do not want your primer to have a sheen to it. Make sure to clean the body with a prep/degreaser and then tack cloth.

Mike

[86GT2go]

We would use either 400 or 600 grit for primer sanding.

[Racin 5.0]

Most imperfections? you need to get them all out. especially on red as it will show up. If this is your first then I would go 600 and dont put pressure with your fingertips but use a block. Sometimes as paint shrinks up as its drying you will pick up imperfections that weren't noticible in the primer