Micron Extra vs. Micron CSC vs. Petit ??? - Page 2 - SailNet Community

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  #11  
Old 03-22-2010
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I use Micron CSC because that's what the PO had used. I've had some build up. I probably painted too often the first few years I've had my boat. I've had her for 9 seasons now. I have found that scrubbing the bottom once around the middle of August really helps. When I do that I don't have much slime to power wash off when the boat comes out in late October.
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Old 03-22-2010
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Quote:
Originally Posted by Maine Sail View Post
If you want an ablative that won't build up over time and one that will actually ablade (wear away)the Petit line is better than Interlux in my personal experience. CSC & Extra don't begin to ablade or wear away until 6-7 knots. Most sailboats don't maintian these speeds long enough and a while you get build up.

I have now done three complete bottom jobs on three seperate boats and learned the hard way with CSC & Extra. Pettit Ultima (SSA- SSA Super Soft Ablative) is perhaps the best low speed multi-season ablative for sailboats. It begins to ablade at 2-3 knots according to tech support and is works extremely well for sailboats if you don't want a thick flaking paint build up at ten or twelve years out. Pettit Hydrocoat is like CSC or Extra and does not begin to ablade until higher speeds.

The whole idea of an ablative is to avoid build up and expose new paint to marine growth. If your boat can't go the speeds necessary to activate the ablading action of a paint, why use it..??

Just my experience after using both the Micron line and the Pettit stuff...
This is really good info -- I had no idea. I have some buildup of Micron Extra from some overzealous painting. The Pettit Ultima SSA is also $88/gallon at Defender -- less than half the cost of Micron Extra. Not really a multiseason paint, though (with Micron Extra, I found myself putting a coat on anyway, which is one reason I have some build-up). I will say that Micron Extra has performed really well for me... but it's good to know there are some really good alternatives. I have a few to decide which route I'll go -- this is really tempting though (with the abalative doing it's job at slower speeds, I'll likely need fewer cleanings during the season, too).
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Old 03-23-2010
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Hello,

I redid my boat bottom in 2008, soda blasting off what seemed like 20 years of hard paint. After barrier coat with Pettit products, I applied 3 coats of Hydrocoat.

The Hydrocoat worked OK, but not great. There was a fair amount of slime buildup. No barnacles or other hard growth, but more slime than I remember from years past (on other boats, usually with West Marine CPP or something like that).

Last year I used the Pettit SSA (Single Season Ablative). It was cheaper than Hydrocoat and was supposed to be better at slime. It wasn't. The performance was similar to Hydrocoat. And, since it is single season only, it doesn't really cost less. Additionally, I have areas where it is flaking off the coat underneath (which is Hydrocoat).

This year I plan on trying SR40, which is supposed to be the best at slime.

I'm sanding off all the old SSA and getting down to my first coat of Hydrocoat. It's pretty easy with my sander.

Next year I'll update everyone on SR40.

BTW, my sailing area is the Long Island Sound, home port is Mt. Sinai. My boats gets used at least once a week usually 2-3 times a week for 2 hours or so.

Barry
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Old 03-28-2010
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Wink FYI - Compatibility Chart from Pettit

http://www.pettitpaint.com/fileshare...ilitychart.pdf
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Old 03-28-2010
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Lots of good info here. After some thought, I've decided to switch from Micron Extra to WM PCA Gold (rebranded Pettit Ultima SR-40) at a savings of about $80/gallon. PCA Gold is on sale at WM for $129/gal through 4/4 and is a multi-season ablative with Irgarol to reduce slime build-up.Saved myself some $$ and don't think I'm going to regret it.
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Old 03-28-2010
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LOL, same here
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Old 03-28-2010
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After a really bad experience with slime on Micron Extra last year, I'm also making the switch to Pettit Ultima SR-40.

First I've heard that the WM PCA Gold was is re-branded SR-40, got any info to back that up with?
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Old 03-28-2010
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Quote:
Originally Posted by T37SOLARE View Post
After a really bad experience with slime on Micron Extra last year, I'm also making the switch to Pettit Ultima SR-40.

First I've heard that the WM PCA Gold was is re-branded SR-40, got any info to back that up with?
Yup... current issue of Practical Sailor (go to Bottom Paint Test Updates ). The article states that WM CPP and PCA Gold are rebranded Pettit paints and further rates "Ultima SR-40 (WM PCA Gold)" as among the best ablatives at 6 months and 18 months with Irgarol for slime protection and 40% cuprous-oxide.
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Old 03-28-2010
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Quote:
Originally Posted by T37SOLARE View Post
After a really bad experience with slime on Micron Extra last year, I'm also making the switch to Pettit Ultima SR-40.

First I've heard that the WM PCA Gold was is re-branded SR-40, got any info to back that up with?
Same reason I am switching First I've heard of the PCA Gold as well, I just purchased the SR 40 from Defender at $143.00
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