Boat Hull Stains Easily

isaacs

Petty Officer 2nd Class
Joined
Oct 15, 2013
Messages
153
My Bayliner runabout (white) is always getting stained, mostly when I boat in brownish or muddy water. These stains are easily removed by using oxalic acid but they keep reoccurring. It doesn't seem to matter whether the hull is waxed with quality wax, the stains just keep coming back. Perhaps Bayliner just has lousy porous gel coat?
 

Grub54891

Admiral
Joined
Jun 17, 2012
Messages
6,137
Have you tried wetsanding a test spot? Then wax as normal. The gelcoat may be a bit porous, letting the gunk settle in. Brackish water is hard to stop from staining. At least its worth a try.
 

FunInDuhSun

Chief Petty Officer
Joined
Apr 25, 2010
Messages
488
I struggled with this problem for years.
A lesson I learned from boating the Chesapeake: wipe down the hull sides as soon as it’s on the trailer. No soap or chemicals needed! I use an old beach towel or big sponge.
 

briangcc

Commander
Joined
Jul 10, 2012
Messages
2,394
All of my boats have done that. It's not a function of Bayliner. As mentioned above, wipe it off once you have it on the trailer with a towel/rag/etc. Some launches are including wash down facilities to help prevent the spread of invasive species so I'd check to see if your launch has that and if so...use it.
 

dingbat

Supreme Mariner
Joined
Nov 20, 2001
Messages
16,313
Depends on the cause of the stains. If it’s just dirty water hosing it off before it dries will help.

If it’s tannic acid like we get, it’s not coming off without chemicals.

I keep a garden spray full of 25/75 dilution of Atwood biodegradable hull cleaner and water. Takes all of 5 minutes to spray down and rinse.
 

JASinIL2006

Vice Admiral
Joined
Feb 10, 2012
Messages
5,713
We always wipe down as soon as the boat is on the trailer and out of the way of others trying to launch. Wiping down with damp rags immediately makes a huge difference and requires a lot less energy and time than trying to clean it after it has dried.
 

isaacs

Petty Officer 2nd Class
Joined
Oct 15, 2013
Messages
153
Thank you all for your help. You've given me some ideas.
 

Roverseer

Banned
Joined
Jun 10, 2020
Messages
1
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MOD EDIT - This post was an exact cut and paste of briangcc's post #4 and had a link added later to his sig. Explaining why he has been banned. We try our best to protect our members.
 
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SDSeville

Lieutenant
Joined
Mar 19, 2010
Messages
1,481
Wet sand, cut, and polish...followed by wax. Then it shouldn't stain as easily and the stains you do get should wipe off much easier.
 
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