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mildew on project

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Forum topic by Glenn posted 43 days ago 274 views 0 times favorited 8 replies Add to Favorites Watch
Rockler
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Glenn

70 posts in 287 days


43 days ago

I finished this table at the end of August, and it’s already got mildew stains on the top—we’ve had an awful lot of rain here the last couple of months. It is made of cypress and was stained with Cabot outdoor deck stain (Jarah brown). Is there anything I can do about the mildew? The treated pine adirondack chairs I built this summer with the same stain is clear as a bell.

-- Glenn, Arkansas

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TopamaxSurvivor

3077 posts in 576 days


43 days ago

I think it’s probably from the wood it self. I’ll be interested to see wath the gurus have to say too.

-- Debt is nothing more than the 21st Century's form of slavery.

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mics_54

433 posts in 371 days


43 days ago

That’s unfortunate. Does cabot claim to have mildew resistance? Linseed oil products tend to have a problem like that as I recall and require mildew inhibitors. Behr had problems with their exterior siding and deck stains similarly.

-- Dan, Sterling Alaska, http://sullcon.homestead.com/ Before you criticise some one, walk a mile in their shoes...then you will be a mile away and you have their shoes!

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Glenn

70 posts in 287 days


43 days ago

I’ll have to check the can to see if it says anything about mildew.

Do you think I could sand it off with 200 grit and apply more stain?

-- Glenn, Arkansas

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socalwood

968 posts in 504 days


43 days ago

Test a spot with a 50% bleach solution -

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a1Jim

17211 posts in 477 days


43 days ago

I’m with Rob 50/50 household bleach and water in a test area.

-- Jim from Heirloom Woodshop, custom furniture ,maker, woodworking school, heirloomwoodshop.com

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mics_54

433 posts in 371 days


43 days ago

I imagine you’ll have to go through the whole cleaner, brightener, mildewcide schtick. Clorox might help but may take several treatments.

-- Dan, Sterling Alaska, http://sullcon.homestead.com/ Before you criticise some one, walk a mile in their shoes...then you will be a mile away and you have their shoes!

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DaleM

421 posts in 284 days


43 days ago

The only thing I found that would actually kill mildew and at least lessen the stain was Tilex. I tried bleach first and it didn’t seem to do anything but maybe you’ll have more luck with it if you try it.

-- Dale Manning, Carthage, NY

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Glenn

70 posts in 287 days


34 days ago

Just an update: I went to Lowe’s and bought some stuff called DampRid Mildew Stain Remover Plus Blocker, which contains no bleach or acids. It worked beautifully. After spraying and sitting for five minutes, the mildew just wiped right off with a sponge. The table looks good as new. The back says that occasional spraying will build up a protective barrier against mildew that isn’t diminished by weather exposure. We’ll see, but so far I recommend it.

-- Glenn, Arkansas

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