I have been using a product called Behlen Pore-O-Pac (Mahogany) grain filler prior to applying my stain (Minwax Red Mahogany) on my projects. I just rub it in with a cloth. I don't use it for the purpose of filling the grain, but rather for the color it gives (it gives a very dark base color). Once the stain is applied on top it creates a lot of