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Sapstain in yew sapwood

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adb:

--- Quote from: kiwijim on October 02, 2012, 09:13:08 pm ---Hi Guys,
This morning I was reducing some thick sapwood on a nice yew warbow stave. Under the bark I found quite a bit of sapstain; occasional light blue and grey streaks that go all the way to the heartwood :(.
Have any of you come across this? and more importantly, do you think the sapwood has degraded too much to be a safe backing? BAcking the stave is not an option, but the stave is deep enough to remove all the sapwood and make a heart wood only bow. Your thoughts appreciated.

Regards
James

--- End quote ---

Again... why isn't backing an option?

kiwijim:
A stave of this quality is destined to be a self bow. If the the consensus was that the sapwood was marginal, I would simply strip it all off and make a heartwood only bow.

tannhillman:
Hi James,

Would it be possible to upload some pics just to see what the sapstain looks like, just to be sure what you have is the same as what I have used with out problems?

Iain

adb:

--- Quote from: kiwijim on October 06, 2012, 02:53:39 am ---A stave of this quality is destined to be a self bow. If the the consensus was that the sapwood was marginal, I would simply strip it all off and make a heartwood only bow.

--- End quote ---
Backing it with rawhide might solve yor problems.

Keenan:
 I understand your wanting to stay pure with the stave for a war bow.  I have worked several staves with sapwood stain and never had a problem with it.  I have found that due to the thin bark any injury can cause that to happen but is usually builds in strength while healing. Staples, bullets and any other metals often with give a purple stain in the wood as well

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