White finish

One of the problems with using a dark contrasting colored primer is applying a light colored especially white or yellow afterwards. I prefer using a light blue or light gray or white glazing compound for that reason. 3M Acryl glazes.

Apply a couple coats of light gray or flat white. If you use gray you'll need to apply a coat of flat white over it.

Let each cure before going on to the next step.

I'd say more primer coats rather than more color coats. In fact, I don't apply color coats until I can see no sign of color through the primer.  Also, I use a full-bodied auto body or general purpose primer (usually Krylon) to ensure no bleed through. I have found many of the plastic model primers to lack opacity.

Now, the primers I use do tend to obsure fine surface detail and that is a drawback to them.  But for airliners and other civil aircraft this is often not as much of a problem as they have a lot of paint on them.  I think the surface detail and panel lines are overdone on many kits anyways.

You might dry a gray primer before the white. It should cover better and give you a neutral surface for the white.

Andas Gerald said, using a light colored filler will make covering it easier.

Cheers, Aaron

A light silver is also a good backdrop for white & it makes a good job of covering up irregularities like you mention.

Milairjunkie

A light silver is also a good backdrop for white & it makes a good job of covering up irregularities like you mention.

Indeed.  A silver or aluminum color is usually the most opaque of any, so it is always available as a last resort.

It covered fine after just a few more coats...guess I got a little anxious.

Thanks so much for all the replies and good ideas.

Alan

 use Armory white primer, it can be found at most miniature gaming stores or online, 6 buks for a full size can. ir covers great. they I use testors Wet look clear over the top, decal and clear!