I wanted to have a picture painted by my friend onto an acoustic panel in my room. I contacted some local companies working on such projects, but they work only with printing on this material.
Fortunately one of the manufacturers responded to my e-mail and explained the issues I will meet. He explained to me that material behind the picture needs to "breathe", so the canvas can't be covered with thick layer of oil paint, and even shouldn't be primed. Do you have any solution to allow such picture "breathing"?
The "breathing" is necessary, because the canvas needs to have pores allowing the sound wave to pass through and be absorbed by the material behind the canvas.
I thought about painting without priming, but I am not a painter and I don't know why priming is so important. My painter says it is impossible to paint without priming, but he isn't a professional painter, rather enthusiast, and he doesn't think he knows all tricks allowing such things, but he is willing to get to know them.