black streaks below my mooring covers

massimofinance

Chief Petty Officer
Joined
Oct 30, 2004
Messages
508
I waxed this area, twice, and still get these tough to remove black streaks. What are they and how do I prevent them?

Thanks!
 

FunInDuhSun

Chief Petty Officer
Joined
Apr 25, 2010
Messages
502
Re: black streaks below my mooring covers

It's the grime left from runoff after it rains.
I've found the best (but NOT easiest) way to keep them from appearing is to thoroughly clean, wax, then power buff the hull. When I do that I don't get any black streaks for a couple years. My wax of choice is 3M Marine Wax.
The power buffing seems to seal the tiny pores in the fiberglass. It's a LOT of effort but it always works for me.
 

massimofinance

Chief Petty Officer
Joined
Oct 30, 2004
Messages
508
Re: black streaks below my mooring covers

thanks. What exactly is power buffing? Do you mean by using a waxing wheel? I do that. Thx.
 

FunInDuhSun

Chief Petty Officer
Joined
Apr 25, 2010
Messages
502
Re: black streaks below my mooring covers

No, a buffer is much heavier-duty than a waxing wheel.
I use a 9" Black and Decker BuffMaster, but they aren't made anymore. The Dewalt DW849 is similar.
Buffmaster1.jpg


I use 3M "Perfect-It" foam pads. Excellent results.
 

Lrider

Chief Petty Officer
Joined
May 19, 2010
Messages
631
Re: black streaks below my mooring covers

Barkeepers helper works then a little wax, or move to north dakota where there isn't so much pollution.

I vote for North Dakota :D
 

KCinNC

Cadet
Joined
May 30, 2010
Messages
18
Re: black streaks below my mooring covers

i bought some "Black Streak Remover" cleaner at the local Boating store. it works pretty good to remove 90% of the stain.
 

KermieB

Petty Officer 2nd Class
Joined
Jan 17, 2010
Messages
144
Re: black streaks below my mooring covers

I hear BP has some new stuff out. They are giving it away to boats in the Gulf.
 

alexdunbar

Recruit
Joined
Jan 22, 2012
Messages
2
Re: black streaks below my mooring covers

I waxed this area, twice, and still get these tough to remove black streaks. What are they and how do I prevent them?

Thanks!

Hi,

Got the same problem on the French Riviera. Do you think it comes from the morning dew, light rains or heavy rains?
Do you have an airport nearby?
I limited with sponges around the scuppers areas. It only last a while but helps. Where are you docked?
Courage.

Alex
 
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