|Forum topic by fitzhugh||posted 01-22-2015 03:05 AM||979 views||0 times favorited||11 replies|
01-22-2015 03:05 AM
I just realized, years late, that the holes in the boards for my not yet finished bench top may be something to worry about. They fit the photos and description of powderpost beetle holes, though larger than some descriptions at 1/8” to 1/3”, averaging 1/4” or so. In some cases they are crammed with the powdery frass, others, not. I’m hoping someone can advise me on a way to treat and keep the wood because I’ve put a whole lot of effort and time into them.
Can I safely treat the wood and still use it? Do I need to, or can I take a wait and see, now that I know to actually look? If treated, can I use the bench without health risks, or getting any nasty residue on hands, tools and projects? Do I have to now treat each piece of wood in the shop or can I treat the few visibly damaged ones and take a wait and see approach? I honestly don’t know if the are more holes than before. I can’t check for frass just below holes because I moved stuff to a new location. I can say that the boards a a whole lot dryer now; could the infestation have died off?
I really want to salvage the boards if I can. They came from someone making a log cabin – his test cuts as he learned his new (to him, otherwise old) bandsaw mill. The mill had pretty drastic issues tracking as it passed knots as well as some issue causing severe twist. They started out as about 3 1/4 to 3 1/2 thick by 13 by 66. However, by the time I hand planed away the waves and wind they are just under 2 3/4 thick (that truly was the max size that fit). That was A LOT of shavings! I put a lot of sweat and no small amount of blood into them. I made a couple planes to help, including a 23” wooden try plane to flatten the top. I also had to wait a few years for them to dry out since they started very wet, then wait for space when the room got taken over as not-shop space.
I’ve read Bora-care is better than timbor, penetrates better. I’ve read the msds and it states the toxicity is from ethylene glycol but that it is generally non-irritating. Any input? Also, does the ethylene glycol stick around or evaporate? I’ve read it breaks down quickly in soil and atmosphere – if I interpret correctly I’m safe.
Anybody have any suggestions or advice?