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  #21  
Old 09-17-2019, 08:33 AM
88 PS190 88 PS190 is offline
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Boat: 1988 MC Prostar 190, 351 Ford
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Quote:
Originally Posted by wilkiesc View Post
In between wet sands which I try to avoid given age of my boat, I use "Mary Kate's on and off". Stuff is magic but also very abrasive to anything not fiberglass including trailer, rubber and skin. Give it a look
I mean the stuff isn't abrasive at all - its just straight up Acid.

For the same reason that people will use straight Vinegar to clean water spots any Acid will clean fiberglass of scum and mineral staining. It will also eat pretty much anything that's not.

Marykate appears to be about 40% by weight of Acid in about 60% water with a small amount of surfactant. It costs ~20-30$/Gallon. Muriatic acid diluted to roughly the same concentration is available at your local hardware store for <6$/Gallon - used to prep concrete for staining, or to acidify your swimming pool.

Point being - you pay a lot of money for anything labelled hull cleaner.


Good detail on that porter cable - the 3.5" pad might have sold me, I've been looking for a pneumatic because I store on the lift and I'd love to run some air hoses down to a pony tank on the dock as opposed to running electrical to me standing on my lift.
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  #22  
Old 10-15-2019, 04:17 PM
johnye75 johnye75 is offline
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Join Date: Sep 2019
Boat: none yet
Location: Midwest
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I just picked up 08 X1, with heave oxidation at the transom, it is red, and now white haze all over it. I was looking up special products to buy, but I had in my garage Meguires ultimate compound that I used on my car. I tried it in one spot, and took it right off, looks like new now. This product does not remove much material, super safe, and it works, I will post pictures later, but in my area it will rain for the next 5-6 days, so I won't have before/after pics for some time.
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  #23  
Old 10-15-2019, 07:05 PM
waterlogged882 waterlogged882 is offline
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Join Date: Dec 2004
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Quote:
Originally Posted by johnye75 View Post
I just picked up 08 X1, with heave oxidation at the transom, it is red, and now white haze all over it. I was looking up special products to buy, but I had in my garage Meguires ultimate compound that I used on my car. I tried it in one spot, and took it right off, looks like new now. This product does not remove much material, super safe, and it works, I will post pictures later, but in my area it will rain for the next 5-6 days, so I won't have before/after pics for some time.
Gel will shine for a little while. Until you get down to clean gel (removing the oxidized surface), the oxidation will reappear. It's not really gone unless it wasn't in bad shape to begin.

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  #24  
Old 10-15-2019, 07:35 PM
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bturner2 bturner2 is offline
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Or buy a big tub of that product and be prepared to do it over and over and over and over and over....
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