Do I need to re-sand after cleaning wood?
Am getting ready to apply Penofin to an outdoor wooden table that I've sanded down to 180. The guy at the hardware store said that after I washed it with a wet rag, some imperfections would come to the surface and it would be a good idea to sand again with the 180 (he said he repeats this process 3 times).
Well, he was right about the first part... I used a wet tshirt to wipe off all the sanding dust, and the wood when dry does seem a little rougher (less smooth) than when I had just finished sanding.
Is the re-sanding really necessary? I don't mind the wood not being perfectly smooth, I just don't want to risk the Penofin not applying properly.