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View Full Version : Cleaning Boat Bottom - Filthy


Lumbergh
09-09-2012, 04:14 PM
So I am planning the cleanup of my boat when I pull it out of the water in a few weeks, it has been in for a couple of months and summer is winding down here in Seattle.

After searching through the old threads and google-fu, it would seem that Starbrite is the answer for the FILTHY brown bottom that currently graces my once lovely Prostar.

How about cleaning the bottom where it rests on the bunk-boards?

My plan of attack is the following:

http://i470.photobucket.com/albums/rr66/Lumbergh556/costcoarcanjack.jpg
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http://i470.photobucket.com/albums/rr66/Lumbergh556/FloMaster1GalPumpSprayer.jpg
+
http://i470.photobucket.com/albums/rr66/Lumbergh556/starbritegallon.jpg

Anyone have pics of jacking the boat a few inches on the trailer to get the bunkboard to hull areas clean?

Post cleaning I will hit it with Collinite paste wax and buff it out.

Thanks.

russlars
09-09-2012, 05:14 PM
Don't forget the collinite fiberglass cleaner prior to the paste wax.

MC209
09-09-2012, 06:29 PM
that or acetone if you are careful

jschildm
09-14-2012, 10:17 AM
I used Starbrite at the beginning of the year. It did a decent job, but smells pretty wicked. I had someone show me this stuff ...

http://www.amazon.com/Davis-Instruments-Fiberglass-Remover-16-Ounce/dp/B001446K4G/ref=sr_1_1?ie=UTF8&qid=1347631860&sr=8-1&keywords=fsr+fiberglass+stain+remover

... and it did a great job. Wiped on and then just wiped off and the hull was shiny white again. It didn't really smell at all, especially compared to the Starbrite, and I didn't where gloves or anything. I will see if I can find a before/after picture.

jschildm
09-14-2012, 10:52 AM
Here is a before and after pic. The before doesn't really do it justice of how dirty it actually looked, but it looked great afterwards.

Thrall
09-14-2012, 02:09 PM
Toilet bowl cleaner works very well also. Just keep the concrete wet if you're washing it down on conc as it has some HCl in it (muratic acid) and will etch the concrete in concentrated form. Only cost $2-3 for generic toilet bowl cleaner. Doesn't harm the gel.
What lake do you leave it in? Haven't seen your boat on Sammamish.

swatguy
09-17-2012, 11:10 PM
Yup gotta love The Works toolet bowl cleaner. Put it in a bucket and get a long soft bristle brush. It takes almost zero elbow grease.

byronic
09-18-2012, 06:51 AM
"The works" toilet bowl cleaner is a great way to go. Less than $2.00 a bottle. Have used it every year on my 86. I am a little careful on the vinyl decals and rinse quickly. I second the "soft" bristle brush just so it doesn't splatter on you. It does sting a little. It will damage chrome so watch your wheels.

BriEOD
09-18-2012, 04:47 PM
+1 for the Starbrite hull cleaner with the pump-up sprayer. Just understand it is going to strip ALL of the wax off. Ensure you put some quality wax back on prior to putting the boat back in the water.

CantRepeat
09-18-2012, 04:49 PM
+1 for the Starbrite hull cleaner with the pump-up sprayer. Just understand it is going to strip ALL of the wax off. Ensure you put some quality wax back on prior to putting the boat back in the water.

^^ x2 on what Brian said.

CC2MC
09-20-2012, 10:54 PM
I just had a line on the side of my last boat and just mixed a little muriatic acid with about half water and half acid, wiped on, let site for two minutes, and sprayed off. I had to cover my galvanized trailer to do that, bc it is pretty corrosive to the metal. It is very cheap and a little goes a long way. You have to wear rubber gloves too and don't breath in too deep either. If you have a pool, you probably already have some of this laying around.

Lumbergh
09-29-2012, 11:31 PM
Anyone use this:

http://i470.photobucket.com/albums/rr66/Lumbergh556/barkeepfriend.jpg

Contains oxalic acid, same ingredient as Starbrite Hull Cleaner, but costs $3 for 26oz at Home Depot (as opposed to $50 for 64oz of SB). 78oz for $9 is a much better deal if it works.

BrandonKTM
10-16-2012, 10:47 PM
Slimy Grimy works awesome as well. Been using it for years and just spray it on, maybe a light brushing and spray it off. CLEAN!

Dan2060
10-17-2012, 12:09 AM
Hey guys, the boat I bought was stored in water during the summer. I no longer do that. It comes off everytime, but the brown returns even when using the star bright. Is there any way to remove it for good? Do I need to remove it, then sand or something else?

TxsRiverRat
10-17-2012, 10:24 AM
Here is a before and after pic. The before doesn't really do it justice of how dirty it actually looked, but it looked great afterwards.

My hull looked EXACTLY like yours. We used Kaboom, and have it almost complete - did a pretty decent job. My clubs river site is to blame (not complaining, it's a private ski site afterall - lol)... Hopefully a nice wax job will help it from being so severe... I didn't really even notice it getting bad, I guess cause we were pulling off the site after sundown.

I have to get to the very back of the boat now, we just ran out of time and beer the other day.

MC

mitch
10-22-2012, 11:14 AM
Yup gotta love The Works toolet bowl cleaner. Put it in a bucket and get a long soft bristle brush. It takes almost zero elbow grease.

Interesting!! Would never have guessed!

Jorski
10-22-2012, 11:46 AM
I used a two step process and I got the hull perfectly white again. I had a terrible ring around the hull.

Step one, I used an acid cleaner similar to Starbright. I find these get you 90% of the way there.

Step 2 is I hand compounded the remaining line with 3M Cleaning Wax. It would have been much less work with a wool mitt and a polisher.


I used this stuff:

http://content.westmarine.com/images/catalog/full/125965.jpg

Turned out great: