Just wanting a flat finish instead of a glossy finish.
But I think sanding it will leave a powdery look?

Maybe I meant a "Satin" finish or like 1000 grit sandpaper without looking powdery?

I think if I printed on 1000grit sandpaper I would get the finish I want but I think it might pull a lot of the little particles into the finish surface? I guess I could run a test