Cleaning your stained boat

jonboy · November 09, 2013, 09:10:23 PM

After trying many diffrent products I have found by far the eisiest, most effective and probably the cheapest way to clean the water stain around your boat. Now I am not talking about the scum line, Im talking about the yellow stain that is left after you have cleaned the scum line off.
I have some pictures of my dads boat that I done in 30 minuts...really 30 minuts. the only reason it took that long is it was so bad. I done my boat in 10.

Just so you know, My local fiberglass boat guy gave me the tip so I thought I would share it. All you do is mix 70% Muriatic acid with 30% water in a spray bottle you have laying around the house. Spray on wait ten minuts and hose it off with the water hose and your done. You can literally watch it disappear in minuts. Be sure to rinse your trailer good when you are done to keep it from rusting. It is a good idea to wax you boat once you get done to keep the stain from comming back to soon. It will not hurt your gel coat. I wish I had gotten a full pic of his boat before I started. It was an unbelievable transformation.

fishinfranklin · November 10, 2013, 06:33:31 AM

Great tip! Another way to clean it if you can not get Muriatic acid just use towel bowl cleaner such as tiddy bowl. Used it a lot before I found where to get acid in 5 gallon buckets. And I would also recommend to give the area you cleaned a couple of good coats of wax.

Wizard · November 10, 2013, 07:22:38 AM

There is a product named Nu-Hull that takes off the grime and yellow stain. I think it uses muratic acid as part of the formula. Spray on, wait 2 minutes and spray off. I used it on a badly yellowed hull and it came back to the original white .

oldjim · November 10, 2013, 09:55:55 AM

I use vinegar and water, same principal as vinegar is milder acid solution.
Oldjim

coldfront · November 10, 2013, 04:17:47 PM

Quote from: LOZman on November 10, 2013, 07:22:38 AM
There is a product named Nu-Hull that takes off the grime and yellow stain. I think it uses muratic acid as part of the formula. Spray on, wait 2 minutes and spray off. I used it on a badly yellowed hull and it came back to the original white .

LOZ, anyone:
how sensitive is the trailer to this? how seriously do I have to rinse it down? using high-power spray wash at the drive-through carwash.

jonboy · November 10, 2013, 07:16:24 PM

Just a thorough rinsing with the hose at your house is enough. Muriatic acid delutes eisily with water. It being currosive makes it rust prone. As long as you dont just leave it without rinsing you should have no issues.

Wizard · November 10, 2013, 07:35:18 PM

Quote from: coldfront on November 10, 2013, 04:17:47 PM
LOZ, anyone:
how sensitive is the trailer to this? how seriously do I have to rinse it down? using high-power spray wash at the drive-through carwash.

It come with a small sprayer like on premixed weed spray. I did the boat while it was on an air hoist at my dock. I used a garden hose to wash it off. I didn't try to blast it off; just rinsed it off with the hose.The directions said if the stain was really bad, to apply and rub it with a brush before rinsing. The stain came off my hull without brushing. The solution did not hurt my hoist or carpeted bunk boards.

coldfront · November 10, 2013, 07:45:55 PM

Quote from: LOZman on November 10, 2013, 07:35:18 PM
It come with a small sprayer like on premixed weed spray. I did the boat while it was on an air hoist at my dock. I used a garden hose to wash it off. I didn't try to blast it off; just rinsed it off with the hose.The directions said if the stain was really bad, to apply and rub it with a brush before rinsing. The stain came off my hull without brushing. The solution did not hurt my hoist or carpeted bunk boards.

here's why I'm asking:

this would be the same method (or similar) to restore aluminum brightness by removing oxidation. My challenge is I'd have to do it on the trailer...I'm most concerned about the trailer

mygreenihc · November 10, 2013, 10:59:58 PM

Looking at the pictures of the green and white blazer, the hull looks bad, but those pictures do not do it justice. That boat was bad! I can't believe the difference. I honestly never thought that we would see it white again.

Now, what are you gonna do about his truck?.....

Brad

jonboy · November 11, 2013, 04:59:29 AM

Quote from: coldfront on November 10, 2013, 07:45:55 PM
here's why I'm asking:

this would be the same method (or similar) to restore aluminum brightness by removing oxidation. My challenge is I'd have to do it on the trailer...I'm most concerned about the trailer

I done my dads on the trailer with no problem but obviously I couldent get under the bunks. You could put plastic sheeting to keep it off your trailer if thats what you are worried about. It just dripping off so its not like its a large volume until you go to rinse it.

fishinfranklin · November 11, 2013, 05:56:46 AM

I have done many on the trailer. I all ways use a pressure washer to rinse with. To get where the boat rides on the boards just put a floor jack with a block of wood under one back corner and jack up each side to get above the bunks. Then do the same for the other side.