sanding question?

Ok i hear everyone talking about sanding the mold lines on the cars.
I just got my dbs from tamiya and theyhave some.
What is the best way to remove them? Maybe 600 grit then 800 1000 etc.
and should i sand the whole car? Last time i sanded i left these gouges that had to be fixed.Think i used to harsh a grit
Think im gonna paint it white..so first tamiya light grey primer then white primer?,,or grey then white.
Sorry for my rather basic question

http://italianhorses.net/Tutorials/Primer/primer.htm

Hi, Guiwee!

Excellent link. Alex Kustov is a car modeling genius, and everything he says is true.

He recommends toothpaste for the final scrub before priming. I would add that Soft Scrub also works well, and is less gooey.

Think im gonna paint it white..so first tamiya light grey primer then white primer?,,or grey then white.

Grey primer, then white primer, then white paint. Tamiya is good because it's thin, dust-free and covers really well.

Tom

you can start with 1000, if after few passes the stubborn mold line still there maybe u can consider 800 or 600, usually i lightly wet sand the whole body with 2000 :icon16:

One thing that works for me is the BRUSH type Tamiya Surface Primer. First, I sand the mold line with 800 grit paper, to get rid of any edges. To fill that seam, I brush the thick stuff in the bottom of the bottle onto the mold line. After it dries, I sand it smooth.

Then I spray on another coat of primer and check for tell-tale brush marks, pits and any other problems. It's much easier to see defects on a smooth coat of paint.