Okay, I have wased my model. Now I want to use some pastels to weather it some more. My questions are:
1. Should I put a coat of clear acryl over my oil wash, prior to adding pastels?

2. What should I use to moisten the pastels and stick them to the model? I have heard that some modelers will use thinner. If so should it be the same thinner I mixed with the wash or the basecoats?

Sorry for all the questions, this site is amazing. I have never been in a forum this helpful and open. Everyone here is great, Not once have I ever been made to feel foolish for posting a question. Tanks for the help, Steve

After the wash has had time to dry, apply a clear coat of flat or matt finish. Allow this to dry and apply the "dust" of the pastels - dry. The flat finish on the model will "grab" the pastel dust and assist in it sticking to the model.
When you're happy with the effect you want, apply a very light misting of flat or matt finish.

Note The final misting finish tends to dull-down the pastels weathering. If you do not handle the model too much, you could get away with not applying the "mist" finish.

Steve,
have a look to this article:

http://www.missing-lynx.com/rare_world/rw05.htm

Ciao

Great link, Fabio

I also went into the pastel weathering with plain water exercise in this thread:

My new T-55 has arrived!

I don't need to gloss or dull coat to seal the pastels using this method. The T-55A was a good model to demonstrate this technique on...

Gunnie

I have always used pastels dry, no carrier agent. I tend to scrub it into the dullcoted finish and they hold quite well.