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Woodwork discolouration

Posted: Sat Jul 10, 2010 6:38 pm
by Peetee
I am sanding down the wood on the traveller and the varnish is coming away well but there dark blotchy staining in places which I believe is fungal in cause. The car had been dry stored for 30 years and arrived in my garage dry and there is no sign of softness in the wood so I don't think there is any danger that it's recent contamination. Can anyone reccommend a treatment to remove this discolouration?

Re: Woodwork discolouration

Posted: Sat Jul 10, 2010 6:41 pm
by aupickup
real lemon juice will take out dark spots

better than chemicals

Re: Woodwork discolouration

Posted: Sat Jul 10, 2010 7:41 pm
by bmcecosse
Officially - the recommendation is Oxalic Acid I believe - but the lemon juice (Citric Acid) sounds good! Then Cuprinol 5 Star wood treatment - I gave mine loads of this ! Make sure the drain holes under the side windows stay clear.

Re: Woodwork discolouration

Posted: Sat Jul 10, 2010 8:47 pm
by aupickup
lemon juice has been used in the trade for many years

it is a lot kinder to the fibres of the timber

and the best protection you can give the wood is woodguard, it is the best preservative for timber, then you can apply what ever finish you want

Re: Woodwork discolouration

Posted: Sun Jul 11, 2010 12:46 pm
by Chipper
Yacht chandlers sell a product based on oxalic acid which is very effective. Alternatively, E-bay lists quite a few products:
http://shop.ebay.co.uk/?_from=R40&_trks ... Categories

Re: Woodwork discolouration

Posted: Sun Jul 11, 2010 1:17 pm
by aupickup
lemon is cheaper and it does work
try it first then if you find it does not work then spends pounds on chemicals and destroying the cell structure of the timber
why is everyone so obsessed with these chemicals

Re: Woodwork discolouration

Posted: Sun Jul 11, 2010 3:22 pm
by PSL184
Listen to Dennis (aupickup) - He is a cabinet maker by trade so should know what he is talking about :wink:

Re: Woodwork discolouration

Posted: Sun Jul 11, 2010 4:06 pm
by billlobban
aupickup wrote:real lemon juice will take out dark spots

better than chemicals
Dennis is supermarket lemon juice what you are meaning? Brushed on? washed off? how long to dry. Just in the middle on mine and had decider to give up trying cos its so bad

Re: Woodwork discolouration

Posted: Sun Jul 11, 2010 4:46 pm
by aupickup
needs to be real lemon juice from real lemons
and yes squeeze the juice onto the dark patch, and leave, then rinse off, may need several apps

Re: Woodwork discolouration

Posted: Sun Jul 11, 2010 5:46 pm
by billlobban
Thanks Dennis - I'll give it a try in the morning
Bill

Re: Woodwork discolouration

Posted: Sun Jul 11, 2010 8:15 pm
by bmcecosse
You can use the remains in your G &T Bill.........

Who makes/sells 'woodguard' Dennis ???

Re: Woodwork discolouration

Posted: Sun Jul 11, 2010 9:39 pm
by aupickup

Re: Woodwork discolouration

Posted: Sun Jul 11, 2010 10:11 pm
by bmcecosse
Agggghhh - C'est Francais!

Re: Woodwork discolouration

Posted: Sun Jul 11, 2010 10:28 pm
by aupickup
la produit c`est tres bonne

Re: Woodwork discolouration

Posted: Sun Jul 11, 2010 10:39 pm
by bmcecosse
Mais peut-être très cher !

Re: Woodwork discolouration

Posted: Sun Jul 11, 2010 10:52 pm
by aupickup
mais ouis