Getting ready to paint again

[status50]

I've been reading this board for a few weeks and have read some very good advice.

Automotive painting is some what new to me.I have painted a few cars and other things, but am looking for more teaching.

Right now I'm getting ready to paint my car and want to make it the absolute best I can.
I'm painting her in House of Kolor Tanerginero Pearl.

So far I have layed down Ultimate 2K high build primer over the factory paint.I sanded the factory paint down with 400 wet,is this OK?

Since my bumper covers and side skirts are urethane and I don't want the paint to split, what should I use that is compatiable with my primer and paint? Will any flexer work?

Since I have primered my car I have done lot's of work and manage to get grease in the primer.I have tried Grease and Wax remover, but the stains still remian.What can I do?

Before I spray down the base color(white) what grit should I sand it in?I have used 400 wet in the past.
After I lay down the base color should I sand it,or just stray the top coat?

I have not sanded or primer the door jams yet.Should I sand blast them to bare metal or will sanding them down with 400 be ok?

Any recommendation?
Thanks

 

[rex]

I think HOK recomends at least 500 grit before painting but I like 600 myself.Just dergrease the jambs and sand them,and a red scotchbrite will get into those hard to reach spots.If you don't do any bodywork in them you can just seal it before painting them.For the grease spots in the primer the stains won't come out.All you can do is degrease really well and sand the spots out and reprime them.If your first coat of primer fisheyes stop there and sand all the primer off that area before reprimeing.Usually even though there's a stain the degreaser will pull the majority out and sanding just the stain out is fine,but it depends how porous the primer is and how long the grease or oil sat there.You shouldn't need to sand the base before continuing unless there's a lot of dirt in it but you'll have to rebase after sanding it.If HOK is like PPG you shouldn't need flex additive but I don't know the HOK line that well.

 

[status50]

Originally posted by rex:
I think HOK recomends at least 500 grit before painting but I like 600 myself.Just dergrease the jambs and sand them,and a red scotchbrite will get into those hard to reach spots.If you don't do any bodywork in them you can just seal it before painting them.For the grease spots in the primer the stains won't come out.All you can do is degrease really well and sand the spots out and reprime them.If your first coat of primer fisheyes stop there and sand all the primer off that area before reprimeing.Usually even though there's a stain the degreaser will pull the majority out and sanding just the stain out is fine,but it depends how porous the primer is and how long the grease or oil sat there.You shouldn't need to sand the base before continuing unless there's a lot of dirt in it but you'll have to rebase after sanding it.If HOK is like PPG you shouldn't need flex additive but I don't know the HOK line that well.

<font size="2" face="Verdana, Helvetica, sans-serif">I primered her about a year ago and the grease has been there about the same time.
I do have some body work on the rear quarter panels, but don't expect to do any in the jambs.How ever under the hood is a different story,I have welded up the engine bay holes.Will bondo last under the hood, or should I use something else?