Black / gray deck spots - how to fix / prevent? - Page 2 - SailNet Community
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post #11 of 17 Old 05-06-2013
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Re: Black / gray deck spots - how to fix / prevent?

Part two of your question was how to make it stay away.

Fill the micro pores/holes with wax, buff etc.

The only other way is to sell the boat and take up extreme rocking chair sports.

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post #12 of 17 Old 05-06-2013
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Re: Black / gray deck spots - how to fix / prevent?

I had the same problem...only worse. It was all over my topsides.

Here is a shot of the cockpit. Almost all of the black on the transom was the mold.

I used diluted bleach and a Scotch Brite pad, followed by large amounts of water.


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post #13 of 17 Old 05-06-2013
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Re: Black / gray deck spots - how to fix / prevent?

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Originally Posted by g0twind View Post
I had the same problem...only worse. It was all over my topsides.

Here is a shot of the cockpit. Almost all of the black on the transom was the mold.

I used diluted bleach and a Scotch Brite pad, followed by large amounts of water.

Do we get an 'AFTER' picture??

Ron

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post #14 of 17 Old 05-06-2013
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Re: Black / gray deck spots - how to fix / prevent?

That would probably help....


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post #15 of 17 Old 05-06-2013
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Re: Black / gray deck spots - how to fix / prevent?

FSR cleaner would make that white again, but then you'd need to compound and wax it.

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post #16 of 17 Old 05-06-2013
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Re: Black / gray deck spots - how to fix / prevent?

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I'll try the dollar store citrus cleaner first (thanks TropicCat), if that doesn't work I'll look for the stronger stuff that svHyLyte recommended.
We did not find that the Citrus cleaners worked very well and finally went with the more aggressive method mentioned. If the Citrus oil approach works for you, it is important to ensure that all of the residual oil is thoroughly removed as we discovered the stuff becomes medium for mold itself once its acidic content is depleted. Note that if you are in an area with a fair amount of air pollution, the finish surface on Gelcoat and/or wax will erode fairly quickly as moisture in the air combines with the sulfur in the air particulates to create acid (think acid rain). Frequent washing and wax application is the only defense.

In any case, Good luck...

"It is not so much for its beauty that the sea makes a claim upon men's hearts, as for that subtle something, that quality of air, that emanation from the waves, that so wonderfully renews a weary spirit."
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post #17 of 17 Old 05-06-2013
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Re: Black / gray deck spots - how to fix / prevent?

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FSR cleaner would make that white again, but then you'd need to compound and wax it.
I tried FSR and it was unable to remove the black spots. I will be compounding and waxing before launching again to protect all my hard work

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