hi,

i am planning to do some weathering on a wall a half collapsed building and 2 tanks. i already know you need white spirit and oil paint for that, but what are the right proportions? and i heard something about sealing the basic paint otherwise the paint will get washed off? what to use for that?

thanx a lot
diederik

Hello, mate!
My best advice to you, is to go to the "Features" section of Armorama, and you will find a plethera of information about washing and weathering!
~Gunny

thanx a lot for the tip,

but i still miss one thing what are the proportions a wash should have i can't find it anywhere?

For oil paints your want to thin them to about the consistency of milk for a wash.

And yes if the paint already on is a type that the thinner will remove you will need to seal it. In this case I would advise using an acrylic based sealer.

the ratio is about 1 part paint to 9 parts thinner. To test your wash, take a scrap model or spare model part with engraved panel lines. Dab a small drop of thinned paint mixture in the panel lilne or at a juntion of two panel line. The wash should be drawn up along the panel line while retaining it's color. If it doesn't get drawn along (capillary action) add more thinner. If it flows in the panel lein but is too light, add more paint.
If you've let the base coat dry completely, several days for enamel, and you don't use a scrubbing motion, sealing the base is not all that critical.
For the wash you are planning, take a wide flat brush, laod it with the wash mixture and draw it along the surfcae lightly and quickly. One pass. Don't be tempted to add extra right away. That's how poeple lift their base colors.
If you have gray or white rubble, use some Payne's gray. For red/brown rubble or bricks, use burnt umber.

thanx,

but as i understand i only need to ad a wash at lines and not al over the model or do i have to??

diederik

I only add a wash in the panel lines and at the panel lines and at the base of raised details to give them a shadowed effect. I'd avoid coverignthe entire model (then trying to wipe off the excess) since it will change the value of the color and risk damaging it as well.
For the very uneven surface of the rubble, however, I'd gently apply the wash to everything and let it settle into the lower area.

thanx,

i think i can do it now.

diederik