I can never seem to be able to wipe up the excess wash off of my models and always end up having to redo the paint and then skip the wash. I’ve tried it on gloss paints as well as coating the surface in future. I use an acrylic wash on enamel paints. I heard something about putting a little soap in acrylic washes can anybody please explain?
Ichirofan2004, have you tried a water colour wash? I use the tube water colour that you can buy from art shops, mixed with water and a little washing up liquid.
I apply this over a gloss coat, which helps the wash run into the crevices, and then leave it to dry. Once dry I use a moistened Q tip, or a small piece of kitchen towel held in trweezers to rub the dried wash off of those areas I don’t need it. I then spay the area with a coat of matt varnish to seal the wash.
The great thing is, it you don’t like it, you can wash it off!
I find this works equally well on external panel lines etc. By the way it’s not my idea, just another technique that I picked up on this forum.
Karl
How long are you leaving the wash on for? I usually start cleaning up within 5 minutes of putting the wash on. Remember, all a wash is is thinned out paint and once the medium (thinner) evaporates, the only thing left on the model is the paint and when it dries, it’s a bear to get off. Sometimes you can use a brush dampened, not wet, with thinner to get it off put it takes patience and a light touch. Always apply a wash over a gloss surface. Either gloss paint or future. A wash WILL NOT clean up on a flat painted surface. Found that out the hard way.
P.S. Why is Ichiro Suzuki they only player to have his FIRST name on his jersey?
i use mm enamels for my paint jobs, then future it prior to the wash. for the wash i use artists oils super thinned with mineral spirits. thin the was until it looks like strong coffee, and wash away. i’m like eagle334, i don’t leave on but about 10 to 15 minutes and then wipe it off. i wipe it off using a scrap piece of T-shirt. the paint that doesn’t come off, i dip a q-tip in some mineral spirits and then dab it on a paper towel to remove the excess thinner, and buff it with the q-tip. i’ve had good luck with this process. i have left some on over night and was able to remove it with relative ease. artists oils take a long time to dry, so i look at it as an advantage. good luck friend. later.
I hate to be on the same page as Saltydog 
but I use my wash the same way and I think it comes out alright
Thad