If I do a very diluted oil wash with mineral spirits and let fully dry for a few days and the do a more concentrated oil wash for the rivets and details - with the 2nd wash effect a fully dried 1st wash much?
No it shouldn’t as long as you let it really dry. But if you want to be 100 percent sure then shoot a thin acrylic clear over the first wash to seal it…
If I were to do this I would Future in between washes.
Zip
[#ditto] Quick, easy and safe.
I wash every model with a black thinned oil paint wash over testors dull coat. I would do the rivets first then the general wash. It should dry in 24 hours to do the second wash. I would think Future would dull the effects of the wash (if done last)
From my own experience and everything I’ve read, washes should be applied over glossy or at least semi-glossy surfaces, in order to flow over the surfaces unhindered and correctly. Matte finishes are quite porous and tend to absorb too much of the wash, and act more like a localized stain in some areas. The effect of a wash should be somewhat subtle–you really want to dull the effect of the wash a bit. So, a coat of future between washes is probably a good thing, Dullcote may not be. I think perhaps Dullcote over the finished product might be the way to go. I know this is the basic principle when applying washes to military aircraft models, and it applies to armor as well.
I don’t find much need for a dull coat over future, if I use a wash made with a flat paint that generally dulls the layer of future below it.