crash6882 Posted February 27, 2008 Report Share Posted February 27, 2008 I just took my first Black Acacia side out of the bending jig, the wood turned green, what do you think caused this, I think it might be moisture, but then i was thinking that it could be some reaction from the aluminum.? Quote Link to comment Share on other sites More sharing options...
Geo Posted February 28, 2008 Report Share Posted February 28, 2008 Maybe minerals in the wood? I think this happens with poplar. Quote Link to comment Share on other sites More sharing options...
Ptt-Guitars Posted February 28, 2008 Report Share Posted February 28, 2008 Does it come out when you scrape it or sand it? Black Acacia, sounds interesting. Quote Link to comment Share on other sites More sharing options...
Mattia Posted February 28, 2008 Report Share Posted February 28, 2008 Aka tassie blackwood. Anyway, use distilled water next time, and kraft paper instead of aluminum in direct contact with the wood. It's not the first time I've seen reports of discoloration with blackwood, but I also recall reading it scrapes out. Quote Link to comment Share on other sites More sharing options...
crash6882 Posted February 28, 2008 Author Report Share Posted February 28, 2008 thanks for the advice, I will pick up some kraft paper and try it on the next side. Quote Link to comment Share on other sites More sharing options...
RGman Posted March 2, 2008 Report Share Posted March 2, 2008 I have some backwood that had some green hue to it, sanded out though. Quote Link to comment Share on other sites More sharing options...
oz tradie Posted March 2, 2008 Report Share Posted March 2, 2008 The greenish hue on the surface is predominantly caused by moisture in contact with the surface. The hue builds over time, the more contact you have. No biggie though, as it's only on the surface and sandable and scrapes off. A similar reaction can be found with Tasmanian oak, where the water or moisture will discolour the timber to varying degrees of black. Also fixable by applying oxalic acid to leach out the stains. Cheers, Stu Quote Link to comment Share on other sites More sharing options...
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