That's the Corafoam by Duna. You can actually do the cut in one pass - unlike wood (especially hardwoods) where multiple passes are required. No knots, splits, cracks, or laminating. All useable material, paints great, and reduced cut times. But, as you can guess, it ain't real cheap.
In fact, I got a bunch in (3/4 and 1") and will sell some at cost plus shipping. Had to order 8 sheets to make it worthwhile shipping it here.
Besides, Rick, you know you have to be nudged a little (ok - pushed a lot) to stay focused.
Hoping to advance to the next step