weathering of tank

Thanks guys your advice really helped to get my project up to spead again .

Welcome to the forum Ipot. The link DJ gave you should help out with your tank. Jim, I really love the pictures of your guntruck.
mark956

Ipot - I use both pastels and the airbrush to get effects I believe you're looking for. In the photo below is my latest Vietnam era gun truck "Sopwith Camel". I used wet pastel chalks for texture where I wanted to represent mud buildup, and for general dusting, I diluted Tamiya Buff with 95% Lacquer Thinner. You have to be careful with your airbrush trigger (a double-action works best) but you can easily acheive great results with a little practice. I touch upon many pastel and subtle weathering techniques on my website (link at bottom of signature) if you're interested...

Jim

Probably the best effect would be achieved with pastel chalk. They come in all the earthly shades you can dream of and are easy to apply. Check this thread:

http://www.finescale.com/fsm/community/forum/topic.asp?TOPIC_ID=744

Do a search about 'pastel chalk' and you'll get yet more info on how to apply them. Do not forget to apply some on your diorama, so that your vehicle does not look out of its environment...