James Little is a very influential artist who works in encaustic.
His process is fascinating, but complicated. From what I've read, he primes his canvases and paper with an oil ground - about 5-6 layers - using a roller. I think he uses stand oil, melted copal varnish crystals and terpentine - all mixed in a blender, then rolled onto the canvas. This, he says, is to protect the canvas from burning.
He also uses a varnish glaze to highlight the edges of his stripes, etc., and he uses tape to make his stripes and triangles. I think he heats the crystals to about 155-165 degrees.
Anyway, although I'm not that hot (heheh) on Color School, or whatever he is (he doesn't want to categorize his style, although to me it's very much DC Color Schoolish) I find his process fascinating, and the colors are incredibly vibrant.
I can't believe it's encaustic! So unlike any other I've seen.