Hi, I have to add a thing about oil washes...I don't do oil washes! I tried but they all made my Valks yellow for some reason. What I do use is a water based paint $1.00 from the rag shop. Cover my valk or other model in future floor wax, let dry and then do a wash with the paint a little watered down.
Looks just like an oil wash and I clean up with just water. If that doesn't work I use clear windex. Works great! No mess, no order and quick drying time. Plus if it's too light you can go over it again without the hassle.
It worked nice for my 19 but really well for my 1/72 battroid J.
I also used charcole pencils. They worked in certian areas. Got them at Walmart.
As for a
how long the oil wash will take to dry. Mine took a day in a half.