I use a brand of paint called General paint. it works well for me. But it is available only in Canada. My advice is to use any PREMIUM brand of paint. We use semi gloss 100% house paint. Porter is a good brand in the USA. I am sure there are others. Don't try and save money in this department. If you do you will need to apply more coats and it won't last as long. Trying to save yourself money will bite you in the long term.
We use Coastal Enterprises water based Primer. Coastal Enterprises also makes the Precision Board we use. It is designed to work together. That' good enough for me. The primer is a high build, sand-able primer. We apply it with a brush as I do not like the end result of spraying. Brush marks are my friend. The folks at Coastal enterprises recommend that you place the work under fan to dry for at least three hours. While I don't often follow directions I do listen here. The three hours under the fan draws out the moisture. This is important.
Once the primer has cured I put on two coats of base color, drying well between coats. The fan speeds things up greatly. Our base coats cover everything.
Then it is time to lay on a series of glazes to enhance the texture we created in the design, routing and primer stages. The first glaze is pretty lightly colored, just a few shades off of the base color. We mix our glazes ourselves using a simple formula. First we buy the clear deep tint base but without any colorant added. It is the same paint as the acrylic we buy. The folks at the paint store will look at you funny when you ask for it. It looks milky white but will dry clear. We mix this at a ratio of 50% clear base with 50% paint of the color of your choice from our stock. The lightest color glaze is brushed on liberally then gently wiped off with a towel. With each coat of glaze we will wipe more and more off, leaving the colors underneath show through. I used some of that same color glaze to add color to the bird's beak. Then it is put back under the fan to harden in a hurry.
The next color of glaze was a reddish born. It too was flowed on and then wiped off with a towel. I took a little more off this time, allowing the rich colors to show through.
Now it was time to add color to the bird and the worm. A final dark glaze would be brushed over the entire piece to bring out the detail when everything is dry.
It is back under the shop fan once more to dry real well before we press on. Stay tuned for the last stages...
-dan