oldgit72 Posted June 27, 2009 Share Posted June 27, 2009 I have a large central oak beam that I have removed the bits that have been 'eaten' from. This has resulted in the beam looking a bit patchy as the bits that I havn't needed to scrape back are darker than the bits I have. My question is what should I use to get the beam back to one colour before applying a finish? I imagine the pre scraping dark colour is caused by a mixture of dirt,tar(from an old open fire) and just aging. Is wood bleach the way to go, or is there another product I can use that would remove the surface 'crud'? thanks Link to comment Share on other sites More sharing options...
Alex H Posted June 27, 2009 Share Posted June 27, 2009 I think you're going to have to 'Carry On Scraping' [:D]Mechanical methods would seem to be the way to go - if you use chemicals then there is the danger of not getting the result you want and you may not be able to recover from the 'error'.A sander or perhaps wire brush to start may be a bit quicker than scraping by hand. Link to comment Share on other sites More sharing options...
Chancer Posted June 27, 2009 Share Posted June 27, 2009 Doesnt oxalic acid darken oak? Or is it perhaps used to bleach it.I am sure that there is a (probably nasty niffing) chemical freely available to rapidly age green or (as in your case) machined oak. Link to comment Share on other sites More sharing options...
Dave&Olive Posted June 27, 2009 Share Posted June 27, 2009 hi ok there is a handy little button top right called ....Search ..... http://www.completefrance.com/cs/forums/1292909/ShowPost.aspx Dave Link to comment Share on other sites More sharing options...
Jonzjob Posted June 27, 2009 Share Posted June 27, 2009 This may well be handy for the mother-in-law http://taxidermytools.com/ , but look at the bit of kit here http://www.katools.com/lancelot.html it looks very usefull for what you are doing?Good link Dave!! Link to comment Share on other sites More sharing options...
oldgit72 Posted June 27, 2009 Author Share Posted June 27, 2009 Thanks, I looked a this thread before posting but i'm not looking for more scraping. Has anyone tried bondex wood bleach? Link to comment Share on other sites More sharing options...
Alex H Posted June 28, 2009 Share Posted June 28, 2009 Has anyone tried bondex wood bleach?Seems to be Oxalic acid - I think I'd stick to the scraping [:D] Link to comment Share on other sites More sharing options...
Chancer Posted June 28, 2009 Share Posted June 28, 2009 Oh well now I know that oxalic acid is for bleaching oak.I have also remembered that it was my late grand-father who told me how to artificially age or patinate oak, it needs to be saturated in ammonia vapour, perhaps not one to try at home! Link to comment Share on other sites More sharing options...
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