Hey guys
Thanks for your replies!!! I'm most happy thought my topic was forgotten

But really I'm glad with al the comment.
How I weathered my tank will be explained here.
The mud on the tracks and roadweels was done buy putting wood glue on them and pouring a little real sand on the glue.
The turret was done with chalk and a paint brush.
Then the hull the lighter dry colour that looks like really dry mud was done with an airbrush. The colour is from humbrol light earth 119.
Then the dark mud colour was done by mixing revell tar black matt 6 and revell leather brown matt 85. Also airbrushed on the modell.
Then the wet effect is done buy brushing gloss paint finish on the places that have to look wet.
It is a really simple method but it works.
Sorry I don't have an english version of my site but I'm working on it
Greetz Roel