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Thread: Sooty Mould on Silky Oak
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20th June 2012, 09:19 AM #1
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Sooty Mould on Silky Oak
Hello
I made a garden bench from Silky Oak and used Organoil Garden Finish as the preservative. In 2 months the bench was black. I washed the bench with Wattyl wood wash and gave the bench 2 more coats of Organoil. The bench is now black. The tech at Organoil said the problem was sooty ash. I have a timber pool deck and fence posts and don't get this problem. Any ideas on what is going on? I live in a rural area.
Many thanks
Hereward
NB My sister has a 40 year old Teak seat in her London garden. No problems with sooty mould.
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20th June 2012, 10:02 AM #2
Timber Hoarder
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Any oil based finish when mixed with moisture will grow mould.
Up here in the wet tropics the only way to stop painted doors from growing mould is to use a water based enamel paint.
The Teak seat in London most likely doesn't have an oil based finish on it.
Try some sample pieces with a few sample finishes, you can get a water based PU now & there is also an epoxy based clear finish for boats.Cliff.
If you find a post of mine that is missing a pic that you'd like to see, let me know & I'll see if I can find a copy.
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