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Originally posted by Steve Milby

I use one coat of PCA Gold each year (or two coats, if it looks like it's getting thin. It's currently on sale at Westmarine for $169. a gallon. If I put two coats on in any given year, I'm likely to skip bottom painting for the next year. If you spend a few dollars more now, you save yourself a lot of work later. IMO, it's worth the extra cost.

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if you don't apply a new coat of PCA Gold do you scuff last season's coat to reactivate it?

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Originally posted by TakeFive

FYI, the newest PCA Gold is different from last year's version...

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Originally posted by Stinkpotter

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Originally posted by TakeFive

FYI, the newest PCA Gold is different from last year's version...

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Interesting--I thought it was a Pettit paint, and Pettit is still advertising "slime reduction" (as in Hydrocoat SR, which I bought last month). It supposedly has an "organic algaecide". Maybe WM will get it next year.

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Antifouling Companies Struggle with the Loss of Herbicide Irgarol
Posted on March 13, 2015 by Kristin

Your go-to antifouling paint may be different than it was last season.

As a boat owner, debunking the science of which bottom paint to use can be puzzling. Choosing the right antifouling for your boat will depend on many factors including your location, the current and the water temperature as well as what type of boat you have and how frequently you use it. Success with a particular bottom paint usually equals a loyal brand customer who relies on similar results season after season.

So then, if a main ingredient that was touted as being *key* to the antifouling side of boat bottom paint all of a sudden disappeared from the contents, are we ill fated to depend on our tried and true (maybe even blue!) paint? Enter Irgarol: The algaecide supplied by chemical giant BASF and widely relied upon by most marine paint manufacturers to control “soft growths” like slime and plant growth that has very recently been discontinued as a bottom paint ingredient.

BASF seems to have caught the bottom paint industry off guard with their announcement late last year, and while manufacturers of the Irgarol dependent paint hope that in just 6-9 months it could be in production again, there is no guarantee, and certainly these companies had to act quickly to be ready for bottom paint season with an alternative. There are a number of popular antifouling paints that are being affected by BASF’s discontinuation of Irgarol.

Interlux:
Micron Extra, Ultra, ACT, VC17m Extra
Pettit:
Trinidad SR, Trinidad Pro, Ultima SR 40, Ultima SR 60, Hydrocoat SR
*SR-21 will not be available until Irgarol is re-released (available at JD.com)
Seahawk:
Cukote Biocide Plus, Tropikote Biocide Plus
West Marine:
BottomPro Gold, PCA Gold
Blue Water:
Copper Pro SCX, Copper Pro SCX Hard, Copper Shield SCX

As a distributor of most of the bottom paints listed above, when Jamestown Distributors got word about the Irgarol shortage, we, like many other suppliers, ordered as much stock as possible of these Irgarol formulated paints to help customers seamlessly prepare for spring launching. Supplies are limited, however we do have these paints in stock and will sell them while inventory lasts. In fact the non-Irgarol replacement paints are also already in stock and for sale by most suppliers, including JD, and we have worked hard on our website to make sure it is clear to customers whether the paint you are buying contains Irgarol or doesn’t.

The moral here: Buyers, be aware of what you are buying. It may not be apparent to you as the consumer if you are using paint with Irgarol or paint without Irgarol. Read the labels carefully. The cans look similar, the type in most cases is small and it can be difficult to tell the two formulas apart.

Jamestown Distributors is sharing this information with our customers because our nearly 40 years of experience and expertise with marine coatings has proven that consumers care about the ingredients and performance of their bottom paint. Our own line of six different TotalBoat bottom paints were all developed without Irgarol and we are obviously glad to stand tall in the industry with our own proven growth-fighting bottom paints, without the distraction of reformulating our product line.

So be informed, read your paint can labels, check the product descriptions at JamestownDistributors.com and monitor your paint’s performance this season. Additionally, we invite you to come aboard the JD Bottom Paint Survey, and be a part of our own research & development of antifouling paints and their performance specific to your boat’s location. The more we know, the more YOU know!

Happy Antifouling! Let’s go boating!

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Originally posted by TakeFive

...Check the ingredient label on the actual can and see what it says. If it says "2% Irgarol" or "2% NCN" then you got one of the last "good" cans.

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Originally posted by TakeFive

I managed to get one of the last cans of the "old" version of PCA Gold.

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PCA Gold Product Description

This antifouling paint formulation does not contain Irgarol, which due to a worldwide shortage is not available as an ingredient. However, the manufacturer has formulated this product to provide similar protection.

PCA Gold is a premium ablative antifouling coating that provides multi-season protection for all boats in all waters. The copper-based formula provides excellent protection against shell, weed and slime fouling. Ablative properties reduce paint buildup.

Type: Copolymer ablative
Recommended Usage: All fouling waters
Biocide: 47.5% Cuprous oxide
Number of Coats Recommended: 2-3
Coverage: 400sq.ft./gal.
Drying Time: To overcoat: 6hrs.; To launch: overnight
Thinner: Thinner/Dewaxer, Model 5437207

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Originally posted by TakeFive

Don't forget that in exchange for the loss of Irgarol, Pettit has increased the copper content in PCA Gold to 47.5%... FWIW, it looks like Petit has also increased their own Ultima SR-40 to 47.5%...

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Originally posted by Stinkpotter

Kyle--you're in Iowa... No barnacles there... Do you have zebra mussels where you keep the boat? If not, there's not much to worry about. Slime is an issue if you race--costing you maybe a quarter of a knot (~5%). That's a big deal on the race-course, but not noticeable when just out sailing. (We had some most of the time.) Now if your boat sits long enough to grow grass at the waterline, that's just plain embarrassing! (Every marina has a few...)

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