Author Topic: Overheating wood  (Read 2327 times)

0 Members and 1 Guest are viewing this topic.

Offline bow101

  • Member
  • Posts: 2,235
Overheating wood
« on: February 06, 2015, 05:18:31 pm »
I know you are not supposed to burn the wood while heating it with a heat gun,  but what is the limit.?  Is a small discolored section not going to take glue...? I'm not talking about a large brown or black spot... >:D..   It won't take stain properly I know that.
"The privilege of a lifetime is being who you are."  Joseph Campbell

Offline adb

  • Member
  • Posts: 5,339
Re: Overheating wood
« Reply #1 on: February 06, 2015, 06:06:59 pm »
Heat treating is meant to be done on the belly side. Why would you "need it to take glue?"

Offline Springbuck

  • Member
  • Posts: 1,545
Re: Overheating wood
« Reply #2 on: February 06, 2015, 06:18:33 pm »
  Anything that has trouble taking the glue should be "sized" by wiping thinned glue over it before the actual glueing process.  In some glues that will require glue up while still damp.

  On a belly, you can burn the wood black without damaging it deeper by torching it and not giving it time to soak the heat in.  Surface charring that wipes off with sanpaper, basically.  Toasty bown wood will not present you any problems, even if you are glueing to the toasy part.  I know this bwecause I ran several elm and hickory slats though my friend's commercial pizza oven for tempering, and had fine results, except that unrestrained slats of wood milled down from saplings, going through a pizza oven, warp like a mother-hen.  That, and very dry wood does not like to bend into recurves once toasted.

  The right color is toasty, caramel brown.  I have had selfbows survive despite some very dark spots, even basically black, on the belly.  But I don't recommend it.

Offline bow101

  • Member
  • Posts: 2,235
Re: Overheating wood
« Reply #3 on: February 06, 2015, 06:47:36 pm »
Heat treating is meant to be done on the belly side. Why would you "need it to take glue?"

Lams
"The privilege of a lifetime is being who you are."  Joseph Campbell