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Mike,
To date I've only used Oak as a stem, and that was a 'glue {epoxy} and screw' operation. From what my research indicated, a 'glue only' procedure is similar to using Teak or other 'troublesome wood. A good wipe-down with an Acetone or Lacquer Thinner dampened cloth immediately before applying the epoxy/filler mix. I agree, that there is a different coefficient of expansion/contraction between woods. However, in a multi-layer lamination situation, the epoxy mix will separate the different layers, plus there is the greater ratio of epoxy-to-wood to consider. As a thought, of the 'belt & suspenders school', I would consider using 'through-and-through wood pegs as both stabilizers and 'decoration'. Because of the possibility that the wood COULD separate along it's own structure {rather than at the actual epoxy joint, I would make up some test samples. BOTH 'pegged' and 'unpegged' of at least 3 feet in length {long enough to actually have enough wood 'movement pressure'. Regards & Good Luck, Ron Magen Backyard Boatshop {PS - one of my projects for a re-furb job, is to make an Oak-Mahogany Tiller of about 3 feet in length. I'm guessing a 'blank' of about 3 x 2 inches - with 1/8 in lams. Maybe even 4 inches - enough to take care of the 'rise'.} "Mike Brannon" wrote in message news:IhQJc.3591$Zr.3105@okepread01... Greetings group, I was wondering if anyone has had any trouble with epoxy glue and white oak. I'm building several laminations here of thin white oak to form frames, sheer clamps, stem etc. and I recently ran across something in print that warned of glueing up oak in such a manner. So far it has been trouble free for me but it seemed appropriate to ask the knowledge base at this forum of their experiences before proceeding at full speed. best regards, Mike Brannon, 24 foot gardner designed power dory in progress. |
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