Hephzibah
regular
Reged: 26/07/2004
Posts: 15
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Thanks. Another great idea. As I've bought the crystals I'll give them a try but the bleach sounds clever and cheaper. I'm working on mahogany in this instance.
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Englander
regular
Reged: 07/09/2001
Posts: 14874
Loc: Barcelona/Bollyolics
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What is A & B bleach? I know oxalic.
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Englander
regular
Reged: 07/09/2001
Posts: 14874
Loc: Barcelona/Bollyolics
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Not a pressure washer on wood, Brendan, takes the soft wood (Pith) out, or you have to be very careful. Fine on GRP of course.
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ashanta
regular
Reged: 28/04/2003
Posts: 1115
Loc: Home Nottingham Marina. 2nd B...
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Why do you bother with such old fashioned remedy's when there are plenty of alternatives in very good and established timber merchants? Two part solutions are excellent and are available (with Instructions)
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BrendanS
regular
Reged: 11/06/2002
Posts: 35715
Loc: Me: Wilts. Boat: Lymington
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Good point. I wasn't thinking of a full on blasting though, just a spray to wash it off (nozzle to wide, standing at a distance, type of thing)
--------------------
See http://www.frappr.com/ybw to add yourself to the forum map
and as everyone else is doing it
www.plaintalkconsulting.co.uk
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Tisme
regular
Reged: 23/11/2005
Posts: 1895
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If you want to neutralize Oxalic acid then use Borax (dissolved in water).
Having said that most people don't bother and you certainly don't need to use it when you are doing a job on GRP; lots of freshwater will get rid of the Oxalic acid.
I've only ever followed up with Borax when I've been varnishing wood. It's worthwhile to be absolutely sure that all the Oxalic acid is removed from the wood.
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Englander
regular
Reged: 07/09/2001
Posts: 14874
Loc: Barcelona/Bollyolics
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I thought thats what you meant, but others may not have done. You just clarified that for them. Thanks.
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