How to use polyurethane foam wisely

Why do I paint over my paintings with a second coat ? There's a few reasons. I use liquin to lay down the first layer of paint. It allows some viscosity and flow to the paint, which helps it to glide over the canvas. The by-product of that is that the canvas can show through a bit too much, and the consistency of the paint is often uneven. In some places, it's transparent, and in others, it's not. Also, if I'm sitting painting a face for a few hours, I become blind to issues with it until I look

Wax vs Poly Over Chalk Paint - Which is Better?

How we use foam to lift concrete