I built a bench out of clear Douglas Fir and have been trying to get a finish on it. After several coats of GF Arm R Seal, wipe on poly, sanding with 400 between coats, I had what I thought was an acceptably smooth finish for the bench. I have to say that I had problems with little nibs of dust that roughened up the finish, so I had to sand and recoat, but it worked. When I was done, I had to put the bench outside, in the sun, for a couple of hours. When I brought the bench inside, I noticed some patches has become rough again. After rubbing the rough areas with my fingers, I noticed the smell of sap on my fingers.
This has never happened to me and I don't know what to do. The clear Doug Fir seemed dry when I purchased it and it sat in my garage for about a week before I began machining it. It all seemed dry when I worked it. So now, what can I do? Is this typical of Doug Fir?
This has never happened to me and I don't know what to do. The clear Doug Fir seemed dry when I purchased it and it sat in my garage for about a week before I began machining it. It all seemed dry when I worked it. So now, what can I do? Is this typical of Doug Fir?
