mr surfacer and mr base white questions

Mr Surfacer is used as a Primer and also as a filler, depending on the grade of Mr Sufacer (500 is coarse, 1000 is a bit finer and 1200 is very fine).
As for Mr Basewhite, it is used primarily as an undercoat for dark coloured plastic, such as black. This will allow you to paint the top coat with out the dark plastic colour showing through. I hope this helps.

Mr. Surfacer is a very good primer and I've been using it since about two months ago. It dries fast, smoothly and durably (I'm talking about the Mr. S 1000, which is light gray in color). It's lacquer-based, though, so you may have issues in using it. Anyway, it's a little thick for airbrushing so I thin it a bit with household lacquer thinner. You can also use Mr. Color Acrylic Lacquer Thinner for thinning. All in all, this is good stuff.

Haven't used the Base White yet but I've read that this is good for undercoating dark-colored plastic, as gdarrington said. It's also great as an undercoat when you need to apply a light or translucent color as a topcoat, such as white and yellow, which are a pain to put on specially when the underlying coats are darker.

Cheers,
onyan

cool i get ya's
i kinda though it was along those line, but id though id ask.... damn things, the back is covered tottally in japanese!