Prop protection for barnacles

CurrentSea

CurrentSea

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Ok, time to start ordering my spring prep materials. Last year, I had some growth, not alot on my IPS props and I put nothing on them. They did cause me to lose a little speed at top end and this year I was hoping to do something different.

I currently use Petit Hydrocoat on bottom of boat, no complaints there.

I painted IPS drives with Trilux and I have no complaints there.

Props I have looked at prop speed, but I hear bad things for the cost.

I hear some are trying the Prop Coat Barnacle Barrier from Petit. Anyone try this?

Also I wonder if I could just use the trilux on the props after a coat or two or primer?
 
My yard in NJ has good luck with Interlux Pacifica. Yard manager claims this is the best product he has used lately.
 
Prop Speed is super expensive and if you read online the results are not good.

I am trying the petit barnacle barrier. It's cheap and and the reviews on some of the sailboat sites are pretty favorable.

I will also dive when boat is in deep water and check and clean!
 
The best way to stop them from growing on your props is to run your boat. If it just sits there, they are going to grow.
 
quote:
Originally posted by CurrentSea

Prop Speed is super expensive and if you read online the results are not good.

I am trying the petit barnacle barrier. It's cheap and and the reviews on some of the sailboat sites are pretty favorable.

I will also dive when boat is in deep water and check and clean!

Click to expand...


Dave if you think the Pettit product is cheap; check out the Rustoleum Cold Galvanizing Compound. It's about 1/5 the price & the MSDS is basically identical ! BTW, available rb2@gr5t HD.
Quite a few at my marina use it & are happy with it. One boater that I suggested to said he'll stick with the Pettit because the Rustoleum was not ablative. With that I called Pettit (I used to sell pigment to them when I was working) spoke to lab guy there & asked if their Barnacle
Barrier was ablative; he said it "WAS NOT" ! Take it for what it's worth. FYI I don't use it because I get free A/F paint from one of my previous customers.Can't beat that price !!
 
I've tried everything over the years with the exception of prop speed. Last time out I used cheap rustoleum cold zinc compound, as someone on this site recommended. Its essentially the same ingredients as the Petit Zinc Coat Barnacle Barrier. I launched April of 2012 and stayed in til November of 2013. I was very happy with the results. Had a few barnacles,but nothing that would change performance.
 
quote:
Originally posted by CurrentSea

Prop Speed is super expensive and if you read online the results are not good.

I am trying the petit barnacle barrier. It's cheap and and the reviews on some of the sailboat sites are pretty favorable.

I will also dive when boat is in deep water and check and clean!

Click to expand...


I guess "super expensive" is a relative term.
:-)

As to whether it works or not, I can not speak directly as to how well it works on IPS drives. But on other underwater metal parts it has always worked as advertizes for me and I've been very happy with it.
 
On the IPS forum most guys don't like it for their props.
For the PODS it works well and is nice because the pods keep their nice bronze color.

I already ordered the petit prop coat, next year I will look at the rustoleum if this works.
It was only $22 for a can!
 
When I first got my boat I used PropSpeed. I used it for five (5) years. It worked well on both the pods and the props. As CurrentSea said, it is a little on the pricy side. It's also a pain to remove and re-install every year. Three (3) years ago my marina suggested I try the Trilux product. They completely removed the PropSpeed, scuffed my pods and props, installed the primer and then sprayed with Trilux. It worked extremely well, both on the pods and the props. No growth. I renew it every year and have never had growth, either plant or animal, on either the pods or props.

Don't change the pod zincs until after you install the Trilux. You want the old zincs inside to protect the mounting point and by installing after the Trilux, there is no paint on the new zincs.
 
I used the rust oleum zinc on props and shafts and it worked great.
 
agree w8ith petit barnacle Barrier--works well for me.
 
Thanks for all the input.
I will report my results in fall.
Last year was bad year for barnacles.
 
After about 3 years of severe problems with barnacles on my underwater metals, I spoke with an Interlux representative at a boat show and he explained to me why I had barnacles on lots of my bronze underwater metal even though there was still Marine copper paint that the barnacles were clinging to.
He explained that bottom paint with copper direct on bronze gear would set up an electrolysis action whereby the Copper is leached out of the bottom paint leaving no protection, although the paint remains.
To prevent the leaching, he recommended a primer layer of Primocon.
"Interlux Primocon metal primer is designed as a barrier coat below the waterline to reduce galvanic corrosion on steel and aluminum surfaces. This primer will not effect the color of antifouling paint."

I use this as a primer every year on all the underwater metal and it resolved my barnacle problem.
The first year it was not 100% effective but it became 100% effective after several years application.

The big advantage of this primer is that you do not have to clean to bright metal or use any special application procedure. I reapply the primer over bottom plate every year, after removing any scum via a pressure wash, and apply a single coat of bottom plate over the primer.

I believe it is about $25 to $30 a quart which more than covers all my underwater gear with paint left over.

Of course if you run at high speeds all summer, some of the bottom paint will wear off. In that respect a non ablative paint would probably work better.
Because of the cost of fuels and running two 502's, I don't run at high throttle for extended periods, so the paint does not wear off.
 
quote:
Originally posted by Kevdon22

After about 3 years of severe problems with barnacles on my underwater metals, I spoke with an Interlux representative at a boat show and he explained to me why I had barnacles on lots of my bronze underwater metal even though there was still Marine copper paint that the barnacles were clinging to.
He explained that bottom paint with copper direct on bronze gear would set up an electrolysis action whereby the Copper is leached out of the bottom paint leaving no protection, although the paint remains.
To prevent the leaching, he recommended a primer layer of Primocon.
"Interlux Primocon metal primer is designed as a barrier coat below the waterline to reduce galvanic corrosion on steel and aluminum surfaces. This primer will not effect the color of antifouling paint."

I use this as a primer every year on all the underwater metal and it resolved my barnacle problem.
The first year it was not 100% effective but it became 100% effective after several years application.

The big advantage of this primer is that you do not have to clean to bright metal or use any special application procedure. I reapply the primer over bottom plate every year, after removing any scum via a pressure wash, and apply a single coat of bottom plate over the primer.

I believe it is about $25 to $30 a quart which more than covers all my underwater gear with paint left over.

Of course if you run at high speeds all summer, some of the bottom paint will wear off. In that respect a non ablative paint would probably work better.
Because of the cost of fuels and running two 502's, I don't run at high throttle for extended periods, so the paint does not wear off.

Click to expand...


Don, the Rustoleum product is ~ $7.00 a can & there are more oz. than the Pettit spray can. Check with Don M. to see what he thinks of it. Been using it for the last several years,
 
quote:
Originally posted by Kevdon22

After about 3 years of severe problems with barnacles on my underwater metals, I spoke with an Interlux representative at a boat show and he explained to me why I had barnacles on lots of my bronze underwater metal even though there was still Marine copper paint that the barnacles were clinging to.
He explained that bottom paint with copper direct on bronze gear would set up an electrolysis action whereby the Copper is leached out of the bottom paint leaving no protection, although the paint remains.
To prevent the leaching, he recommended a primer layer of Primocon.
"Interlux Primocon metal primer is designed as a barrier coat below the waterline to reduce galvanic corrosion on steel and aluminum surfaces. This primer will not effect the color of antifouling paint."

I use this as a primer every year on all the underwater metal and it resolved my barnacle problem.
The first year it was not 100% effective but it became 100% effective after several years application.

The big advantage of this primer is that you do not have to clean to bright metal or use any special application procedure. I reapply the primer over bottom plate every year, after removing any scum via a pressure wash, and apply a single coat of bottom plate over the primer.

I believe it is about $25 to $30 a quart which more than covers all my underwater gear with paint left over.

Of course if you run at high speeds all summer, some of the bottom paint will wear off. In that respect a non ablative paint would probably work better.
Because of the cost of fuels and running two 502's, I don't run at high throttle for extended periods, so the paint does not wear off.

Click to expand...


Don, the Rustoleum product is ~ $7.00 a can & there are more oz. than the Pettit spray can. Check with Don M. to see what he thinks of it. Been using it for the last several years,
 
quote:
Originally posted by Kevdon22

After about 3 years of severe problems with barnacles on my underwater metals, I spoke with an Interlux representative at a boat show and he explained to me why I had barnacles on lots of my bronze underwater metal even though there was still Marine copper paint that the barnacles were clinging to.
He explained that bottom paint with copper direct on bronze gear would set up an electrolysis action whereby the Copper is leached out of the bottom paint leaving no protection, although the paint remains.
To prevent the leaching, he recommended a primer layer of Primocon.
"Interlux Primocon metal primer is designed as a barrier coat below the waterline to reduce galvanic corrosion on steel and aluminum surfaces. This primer will not effect the color of antifouling paint."

I use this as a primer every year on all the underwater metal and it resolved my barnacle problem.
The first year it was not 100% effective but it became 100% effective after several years application.

The big advantage of this primer is that you do not have to clean to bright metal or use any special application procedure. I reapply the primer over bottom plate every year, after removing any scum via a pressure wash, and apply a single coat of bottom plate over the primer.

I believe it is about $25 to $30 a quart which more than covers all my underwater gear with paint left over.

Of course if you run at high speeds all summer, some of the bottom paint will wear off. In that respect a non ablative paint would probably work better.
Because of the cost of fuels and running two 502's, I don't run at high throttle for extended periods, so the paint does not wear off.

Click to expand...


That is why my yard uses Pacifica paint, no copper. I am switching this year.
 
Some info on Pacifica Paint. Some of the applications require Primocor primer.
As with most paints the preparation looks like a lot of work, I normally do not follow all the steps listed in the procedure and get away with it.
Pettit claims their product is superior and is Multiyear.

http://www.yachtpaint.com/MPYACMDatasheets/Pacifica_Plus+eng-usa+A4+Y+20120515.pdf

The testing of the paints like Pacifica with econea appears to be positive, see below

https://docs.google.com/viewer?a=v&...GJEdf9&sig=AHIEtbR_abcDv9jw8G7Md-YqPSbTqbRlAw
 
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