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Wood refinishing
Blkptwhaler
#1 Print Post
Posted on 06/06/16 - 12:25 PM
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What is the best way to remove the black mildew spots that are in the bare mahogany once all the varnish is removed? Should I keep sanding with a heavier grit? Is it possible to bleach them out?

 
tedious
#2 Print Post
Posted on 06/06/16 - 1:25 PM
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I went after mine with random-orbit sander with 60-grit. It made quick work of it and the results were excellent. You could try bleach but it might leave a patchy surface, or be incompatible with the varnish you put on afterwards.

Tim

 
flippa
#3 Print Post
Posted on 06/06/16 - 8:58 PM
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Keep sanding :)

It's a lot of work, but will be worth it!


Edited by flippa on 06/06/16 - 8:59 PM
 
MG56
#4 Print Post
Posted on 06/07/16 - 6:00 AM
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Mahogany is an open grained wood, you aren't going to sand mildew out. Clean it with a 10% bleach solution

 
gchuba
#5 Print Post
Posted on 06/07/16 - 7:01 AM
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Be careful in that sanding may me working the spots deeper in the wood. A chlorine/bleach solution does a very nice job. Do several applications. I battle mold/mildew all the time with the environmental conditions at my property (redwoods). You do not want to varnish over any mildew residual.
Garris

 
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