Wash options for academy M1A1

So i’m semi new to scale modeling. I am no stranger to painting as I played war-hammer and war-hammer 40k for years and had several different armies of small painted figures.

I am currently working on Academys M1A1. Being a military and history nut i have been building mostly military type models. have read all the reviews on this kit and have familiarized myself with all the design flaws and what not.

The question i have is i have gone with an acrylic “dessert Yellow” for the main color on the tank and am wondering HOW to apply a wash to something on a large scale like this. I used to use dry-brush and wash techniques on the games workshop figures but we are talking maybe and inch and a half tall and three quarters inch wide maybe at the most. unlike this build which is pretty large. i also used to buy actual wash paints but am interested in attempting to make my own washes. If i do this how do i go about doing so? does it matter what type of paint it is? I can come up with my own idea for what colors to use but am unsure as to how to mix the wash and what not. Any help would be greatly appreciated.

thanks J2

If you are gonna paint the tank in one if the overall sand schemes, I would suggest a pin wash using burnt umber in either enamels or oils. Both are easier and or more forgiving for washes. If your base coat is enamel, use a acrylic clear coat first before applying the wash. If you are using acrylics for your base coat, no worries. I do not recommend acrylics for your wash medium as they don’t work well for that in my experience. Work on one section of the model at a time. Moisten the area first with clean thinner to reduce tide marks and help the wash flow better. With a small brush, apply your wash around raise details and in recessed areas. Once it has dried, remove excess with a thinner moistened brush. With practice you will get your technique down.