I’m trying to finish my rosewood tenor with shellac, but first I need to fill the grain. Problem is, I can’t remove the sawdust that’s filled the grain after sanding. It’s lighter in color than the rosewood itself and doesn’t look good. I plan to use Aqua Coat, but before I apply that, how do I get that sawdust out of the wood grain? Thanks for any suggestions. I’ve never used rosewood before, so this is a new problem for me.