I am going to make some routed signs. Just lettering and arrows for directional signs. I think I will use redwood. The routing will be about 1/4" deep and 3/8" wide.
I would like to just lay the board down and pour some paint in the grooves and let it dry. I have seen some like this, and they look good. Would that be okay, or should I just paint the routing with an artist's brush? If I do pour paint, what type would last the longest?