How much resin is too much???
I am fairly new to woodworking so let me begin by saying I am fairly sure it is resin. I recently bought some 1-2 pine, after planeing it down there seems to be somewha yellow lines that run thru some of the boards. These lines almost look wet, but to the touch the is no problem. Of course the only boards with practically no knots in them are the ones with these lines. When I cut the boards these give off the strongest smell of fresh cut pine. Can I still use these boards, or have I just bought some expensive kindling???
Any info would be much approved. Thanx.
Replies
DRM, the most serious problem you face is that the resin will bleed through whatever finish you decide to use. Two factors will determine how bad the problem may become: 1) if you use the wood in an environment with broad seasonal changes in humidity and temperature, the resin will tend to bleed, usually when the humidity is low. This is a common problem when shipping pine lumber from moist climates, like the Pacific Northwest to arid ones, like Arizona...2) Also, the type of finish you use may allow the resin to seep through. Pine resins are the source of turpentine, so any finish using turpentine (or mineral spirits, AKA paint thinner) as its vehicle may be softened by the resin. The traditional "cure" for this problem is to apply a sealing coat of shellac (especially on knots, pitch streaks and the end grain) before the final varnish is applied. It doesn't always totally solve the problem, but it usually makes it less severe.
This forum post is now archived. Commenting has been disabled