Order of painting and how to tape

I am trying to understand how to paint a 69 Pontiac wagon.  The exterior of thw wagon is two-tone and the interior is a different color.  So for example the interior metal of the tailgate is one color, the exterior is another (in fact the tailgate has both exterior colors).  But what I do not understand is where the transition between interior and exterior colors should be, how to do the transition.  I understand the door jams are the same as exterior but where does it become the different interior color.

Almost all of the instruction I have seen has the interior and exterior the same color.  Any help (or pictures) would be greatly appreciated.

 

Hi. I'm still kinda trying to understand the question. If you have one color on the jamb, and another color on the face (base color of a two-tone), the exterior has probably been painted with a different or similar but not exact matching color. Happens all the time. That should explain why the outside face is a different color than the jambs, unless what you're seeing is just sun fading on the exterior.

Normally if a two-tone is applied, it does not extend into the jamb. I mask just in past the contour, so the base color doesn't show in the panel gaps. On door or lid edges, I tape on the backside of the panel very close to the edge.  

I don't know how Pontiac masked off their two-tones in '69. Do you have a two tone paint code? Lots of two tones are add-ons. Does your secondary color extend into the jamb at all?

Normally if theres for example, a low-gloss painted metal windowsill next to a matching vinyl covered door panel, the color breaks underneath the weatherstrip. The interior color being from the weatherstrip in, and the exterior base color would cover the jamb from the weatherstrip out.

This make sense? Help any? Hope its what you're talking about. I can make a pic to illustrate if we're on the right track but I'm not making sense.  

Hi,

I think I followed your answer and it makes sense that the color break would be at the weather stripping. Yes, it is a two tone paint code, blue body with white top.  And I know the blue is what extends into the door jamb.  So I know how the exterior color falls.  What I was asking is where the interior color (in this case a slightly darker blue than the exterior) transitions.  I will try to take some pictures to better describe my situation.  As they say a photo is worth a thousand words.

Mike  

Oh yes, photos help immensely. But I wouldn't know right from wrong if I saw it, as far as factory correctness goes. From pics I found on the web, it looks like theres two trim levels, one with the interior trim panel that covers the whole inside of the gate, and one that covers a smaller step area leaving the exterior color exposed. But I can't find a pic of a two-tone one (theres a band of the upper color on the gate, right?) with a closeup of the tailgate jambs.

Maybe you can find a hint in this brochure:

1969 Pontiac wagons brochure on oldcarbrochures.org

By the way, do you have an A body or B body? Tempest, Cat, Bonne? I've been on this forum three years and don't think we have any members with wagons. They sure are cool though. Post a pic and hopefully we can help somehow.

Matt