The easy Tamiya build is over and we're getting into more interesting territory. A lot of armor modelers use some variation of "color modulation" - paint different shades of a base coat over a primer (often gray) to make areas of the vehicle that would get more sun lighter, less sun darker. This also brings tonal variation to the base - much weathering is actually done early. The problem I have with the technique is that it gives a very orderly tonal variation - almost like preshading an airplane. (A variant called "black & white" is more interesting but suffers from the same problem of regular irregularity.) So I'm going to give "black basing" a shot. If you've never heard of "black basing" I really urge you to go to YouTube, search "Black Basing" and watch an 8 minute video by a terrific modeler named Doog - he has an entire series of long videos on it if you're interested. I've used black basing on my last four airplanes and they're the best planes I've built. I think it should work on a tank - we'll see.
Briefly, when black basing you apply a coat of black primer. (That means, for a few hours, I had a Black Panther - that impressed by grandson.) For airplanes I use a sandable lacquer primer in a rattlecan from Duplicolor - it's terrific. I decided to use Stylnelrez here. I thought Stylnelrez was supposed to be matte but I got more of a satin (the flash on the pic amplifies it) but no matter. You then follow up with the "Mottle" stage - you get a good detail brush and use a lightened rendition of the base color and "paint small" making very thin lines. In this case I used three shades - a buff, light yellow and lightened Dunkelgelb. When you apply the base coat over this, you will get a very uneven tonal variation which is what's intended because more weathering is to come. It's essential when applying the base to use a thinned paint that's very slowly built up: if too much goes down the black basing is made invisible. That's like putting too much base coat over a preshaded plane - preshade gone.
Here you see the primer and the mottle coat done. Should note I'll be using Golden High Flow water based acrylic paint which are simply terrific - easily the most airbrush friendly water based acrylic on the market. (That would be Vallejo, LifeColor, AK and Mission Models. I just tried Mission - it's good, but High Flow is better.) Ideally you'd want to use an acrylic/lacquer like Gunze, MRP or Tamiya - all are very good for "painting small." It's a testimony to Golden's quality that you can do well enough from half an inch. For the mottle stage I use a Creos ProConn Airbrush (made by Iwata for Gunze in Japan) - it's a dynamite detail brush, absolutely super and well worth the $85. You could use it for general work - but I've already got both an Iwata Eclipse which I favor - and a Harder Steenbeck Infinity which is now used for clear coating. (I've also got a HS Evolution which I don't use at all: I wish I'd tried Iwata before HS - I would have saved money.)
The problem with Golden is that it's an art house brand (a very very good one - they pioneered artist acrylics in the 50s) and it doesn't come in military colors. But, if you like to color mix that's no problem. Because Golden is made for artists it has several "mixing" colors and all the types are made to combine. I liked finger painting when a kid, and color mixing is very like it. (I also have a very good "color recipe" book for help.) Dunkelgelb will be made with Titanium White, Yellow Oxide, Sepia and a tad of Light Green. I want the color to be lighter than it should be, because the weathering will darken it. Not quite sure how much weathering to do - eventually I'll have a white wash on top. I'll forward a pic of the tank when the base color is applied. (Obviously I've taken off the wheels for individual treatment - they won't go on until very late.)
Eric
blPrimer by Eric Bergerud, on Flickr
Mottle1 by Eric Bergerud, on Flickr
Mottle2 by Eric Bergerud, on Flickr