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post #1 of 12 Old 11-20-2017 Thread Starter
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Pettit hydrocoat eco paint

I am about to buy 3 gallons of Pettit HYDROCOAT ECO for my T37C anyone have any experience with it?

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post #2 of 12 Old 11-21-2017
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Re: Pettit hydrocoat eco paint

Just did the same thing this fall. Used it because it is friendly to both the environment and my aluminum sail drive and aluminium rudder housing. This allowed me to use one paint and not create a potential battery under the water.

Used about 1.25 gallon on my 36 foot. Applied it thin overtop of Pettit Horizons. No or very little smell. Went on great and easy cleanup with water.
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Re: Pettit hydrocoat eco paint

Just had my first experience using petit hydrocoat. I have some experience with other bottom paints (WM-CPP which I use on my boat) and some interlux varieties - all oil based.

The old can of < 1/2 gallon I mixed with a drill paint stirrer for nearly a half hour. After using this old paint it appeared to drop small clumps of paint or paint chips on the surface just painted with a foam roller. The old paint was mixed in the can. So we opened a previously unopened can which was of the same vintage (over 1 year sitting and maybe endured some cold weather). I used a 5" long razor to delicately nick the chickenpox like marks on the hull off and re-covered most of those areas with new paint.
Again, I mixed the new can for nearly 1/2 hour and it still showed some lines of different shades of red. Probably the best thing to do with old cans of this stuff is to take to a place where they have a paint can shaker and have it shaken up, as the label recomends.
The newer paint left a much cleaner surface with the foam roller with few imperfections. It was a warm day (80f) and as the paint sat in the rolling pan it began to skin over which translated into some small globules in the paint job. If I smeared those globules with the sponge roller to smooth and stretch them out it left a slightly brighter red pigment which I tried to re-cover.

Overall impressions of this paint.
It is a bitch to mix up properly, but it does not smell as bad as the CPP or other interlux oil based coverings. I highly recommend getting this paint shaken up at a shop that has one of those shaking machines. The alternative is to pour the 1 gallon into say a 5 gallon bucket and mix the shiz out of it. Most bottom paints really need to be mixed up well to be effective (dont ask me how I know this) but Hydrocoat REALLY needs to be mixed up well before use.

Liking the water clean up and low stink (VOC) though.



Fast drying on a hot day (80f). Low smell (VOC). Cleans up with water! This is perhaps the best thing about this paint besides the fact that it seems to cover a lot of area if spread out nicely and not too thick.

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post #4 of 12 Old 05-03-2018
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Re: Pettit hydrocoat eco paint

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Originally Posted by CalebD View Post
Just had my first experience using petit hydrocoat. I have some experience with other bottom paints (WM-CPP which I use on my boat) and some interlux varieties - all oil based.

It is a bitch to mix up properly, but it does not smell as bad as the West Marine's CPP or other interlux oil based coverings.
Thank you for the write-up. This kind of reporting is helpful as we all wrestle with using greener solutions. One point that I wanted to make is that Petit actually produces West Marine's bottom paints. What is not clear to me is whether West Marine's bottom paints are actually identical to the Petit products.

Reportedly, when a manufacturer makes something under the West Marine product name, West Marine often specifies something which is different tban their standard product. The change in spec is not necessarily about reducing cost of the product. Often West Marine specifies a change in the product based on a particular issue it wants to address. For example, for a while, West Marine's handheld VHF's had a higher water tightness rating than the offering from the company that made it.

As a full disclosure, I work at West Marine one or two nights a week and as an employee I hear these kinds of discussions.

Jeff


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post #5 of 12 Old 05-03-2018
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Re: Pettit hydrocoat eco paint

Hey,

Please report back mid season and again at the end of the season on the performance of the paint.

I can deal with a lot of hassle when applying the paint - as long as it works well.

If the paint doesn't keep the bottom clean then it doesn't matter how easy (or hard) it was to apply - it's not worth using.

Thanks,
Barry



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Just had my first experience using petit hydrocoat.

Barry Lenoble
Deep Blue C, 2002 C&C 110
Mt. Sinai, NY

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Re: Pettit hydrocoat eco paint

I am happy to report back on the effectiveness of Hydrocoat after this season on this C&C 35'.
Important to note: this C&C 35' spends most of it's time in the brackish Hudson river with maybe 1-2 weeks spent out near Block Island. The owner likes to race his boat so mostly likely a diver will be employed to clean the bottom on a monthly basis. I will try to get some feedback from the diver as well.

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Re: Pettit hydrocoat eco paint

Quote:
Originally Posted by Harvey Hall View Post
Just did the same thing this fall. Used it because it is friendly to both the environment and my aluminum sail drive and aluminium rudder housing. This allowed me to use one paint and not create a potential battery under the water.

Used about 1.25 gallon on my 36 foot. Applied it thin overtop of Pettit Horizons. No or very little smell. Went on great and easy cleanup with water.
What does create a battery underwater mean?


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Re: Pettit hydrocoat eco paint

You can't use copper based antifouling on aluminum. There is a remote possibility that copper bottom paint on the non aluminum parts could cause galvanic corrosion with the aluminum being the sacrificial anode.
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Re: Pettit hydrocoat eco paint

I am missing something here
Isn’t the hull fiberglass? Are you saying if you have a saildrive you can use a copper based paint on the hull?


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post #10 of 12 Old 05-03-2018
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I’ve used that paint in the past with fairly good results in Long Island Sound and Buzzards Bay. I used to have a problem with the paint drying too fast as I was rolling it on. Then I started misting the hull with a hose just prior to applying the paint and that solved my problem.
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