I'm learning my new toy, a Shaper Origin.

For now I'm making some gag gift coasters and some door signs.

I'm making these out of solid wood, Maple, Walnut and Cherry.

I plan to engrave the design and then airbrush the cut out engraved areas with paint.

I wonder if there is a sealer I could coat the wood with before I start CNC'ing, so when I airbrush the paint doesn't bleed so much into the grain on the top surface that will remain natural wood.

My first test project, I engraved to around .7mm, but by the time I sanded the surface to remove the overspray, in the pores of the wood, I nearly sanded the design out.

If a sealer is not an option, I'll just have to engrave a little deeper.

Thanks