I'm in the porcess of purchasing a new 2320 and was wondering if I should barrier coat the hull. Most of the dealers I have spoke to say its a waste of time, since we don't leave our boats in the water year round like Florida, where they do see blistering. Lets here some opinions.
Should I Barrier Coat?
- Thread starter Game Time
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That would be personal opinion, really up to you. I barrier coated mine 2 years ago because I had to have it stripped back down to bare glass after struggling to get paint to adhere.
I didn't have any blistering in the 10+- year hull, but decided to do it since it was bare. How long will the boat be wet slipped during the season? You could do it yourself, it's easy enough but alot of elbow grease. Once it's done, that's it, it's on there.
I didn't have any blistering in the 10+- year hull, but decided to do it since it was bare. How long will the boat be wet slipped during the season? You could do it yourself, it's easy enough but alot of elbow grease. Once it's done, that's it, it's on there.
dave-j
Well-known member
yup Cheap insurance.
mildew2
Well-known member
In that long Needs to be bottom painted for sure..Just be sure it's done right the first time,and every time after that.
rjjm
Member
I would definitly barrier coat your boat. I have a 2004 2520xl and my first blisters were dicovered last summer. This spring I will be putting on the barrier coat. FYI
MaxOut
Well-known member
YES, barrier coat.
Charlieroc
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rjjm, do you leave your boat in the water for extended period of time? I have asked about his barrier coat issue before, but it alway seems to evolve to anti-fouling coatings. My concern is for sealing the gelcoat/fiberglass against water intrusion. Thanks guys.
Pboettger
Well-known member
What exactly is barrier coating and the function of it. I have a 21 SE that I bought last year with old paint on it and had it re-painted by someone who was supposed to know their stuff, and it cost me about 1000 bucks. I kept it in brackish water for 4 months and there was paint flaking off when I took it out. Put it back in for 6 weeks, then more paint flaking off when I took it out again. Needless to say I'm not a happy camper about this. Should I have it barrier coated/re-painted? What kind of cost are we talking about?
Peter Boettger
Greenville, NC
Peter Boettger
Greenville, NC
Bryan 2530
Well-known member
$1000 to slap on a coat of antifouling paint??
Paying someone to strip, barrier coat, then paint will probably about 3 times that by the time you are done, or you can do it yourself for cost of material.
I did our 40' Ocean and my previous 25' Whitewater. If I do my Parker I will pay to have it soda blasted, but I am in no rush to do that.
The barrier coat keeps water from getting past the gelcoat and into the cloth and eventually forming osmotic blisters.
If I were you, I would prep the bottom myself and put a fresh coat of paint on this spring and call it done.
Paying someone to strip, barrier coat, then paint will probably about 3 times that by the time you are done, or you can do it yourself for cost of material.
I did our 40' Ocean and my previous 25' Whitewater. If I do my Parker I will pay to have it soda blasted, but I am in no rush to do that.
The barrier coat keeps water from getting past the gelcoat and into the cloth and eventually forming osmotic blisters.
If I were you, I would prep the bottom myself and put a fresh coat of paint on this spring and call it done.
MaxOut
Well-known member
Barrier coat protects the gell coat from absorbing water into the inner layers of glass matt. Only needed on boats that have extended stays in water. Antifouling paint is supposed to come off but not in large flakes unless you have many years of painting. Some anti fouling paints harden when out of water as soon as 24 hrs and are no longer effective. I would have it soda blasted, barrier coated and use a good anti fouling paint. That is the correct process to achieve the best results. Then every year there after just pressure wash and re-paint prior to launching with the same paint. If you do it yourself on a 21' boat it will cost you much less than $1000.00 and then you will know what you have. Like any paint job preparation is the key. The yearly painting will only take 1 gallon and cost between $100 - $200 in materials depending on the paint you choose. Make sure you rough up the surface after applying the barrier coat to make sure the antifouling paint sticks. That is one step that is commonly skipped and an important one.Pboettger":2qoq470c said:
lorikay2
Well-known member
And make sure you're using a bottom paint that’s specially made for boats going in and out of the water!!! I would also consider having somebody else do the work next time. But like MaxOut hinted at, Prep work is key.
Pboettger":37i9qy3a said:
Peter, I've been down this exact same road before, I decided it was hopeless. I was fighting it for years, if it was never prepped right the first time, it really is hopeless. I had mine soda blasted at $30/foot, then I did the rest myself. Barrier coat and painting. It's a lot of work, but it came out great and for the last 2 years I've just touched it up here and there.
I will put one full coat on this spring and I'm guessing will have to do it once every 3 years from now on (just paint) with a touch up in between.
The biggest piece of advice I can offer is IF you decide to go down that route, do not skimp, follow the directions exactly and you will be happy with the results. Feel free to ask my whatever questions you'd like, like I've said, been down this road before.
Pboettger
Well-known member
Thanks guys. As usual, the CP gang comes thru with knowledgable advice.
Peter
Peter
CaptainJim
Well-known member
i've been told the barrier coat is a TON of work and only worthwhile if you have fiberglass issues (osmosis and / or blistering)
i took my boat down to bare fiberglass last year, acetoned the hull, and then painted with a bottom paint primer and two coats of micron act, and it still looks like I painted it yesterday, despite sitting in muddy hot saltwater all summer.
i took my boat down to bare fiberglass last year, acetoned the hull, and then painted with a bottom paint primer and two coats of micron act, and it still looks like I painted it yesterday, despite sitting in muddy hot saltwater all summer.
MaxOut
Well-known member
Barrier coat is just like extra protection some use it some don’t 
If you pull your boat every year for the winter and store on land then it is probably overkill. Just sand it down to bare fiberglass prep and repaint. If you keep your boat in for years on end I would barrier coat it for sure. Antifouling paint does not stop water intrusion at all and eventually water will get past the gel coat. Osmosis and blistering will eventually show its face. If you want a good opinion call your local boat appraiser or Parker.
If the paint is coming off in flakes is it all the way to the fiberglass? If so you probably are suffering from poor preparation or issues with changing the type of paint.
Either way bare minimum I would get back to bare fiberglass or barrier coat whatever is there and 80 grit the entire surface. Clean with acetone, TSP and paint with a good anti fouling paint of your choice. Make sure you follow the directions on the paint and get a paint that fits your usage. Use the same paint year after year and you will be happy.
If you pull your boat every year for the winter and store on land then it is probably overkill. Just sand it down to bare fiberglass prep and repaint. If you keep your boat in for years on end I would barrier coat it for sure. Antifouling paint does not stop water intrusion at all and eventually water will get past the gel coat. Osmosis and blistering will eventually show its face. If you want a good opinion call your local boat appraiser or Parker. If the paint is coming off in flakes is it all the way to the fiberglass? If so you probably are suffering from poor preparation or issues with changing the type of paint.
Either way bare minimum I would get back to bare fiberglass or barrier coat whatever is there and 80 grit the entire surface. Clean with acetone, TSP and paint with a good anti fouling paint of your choice. Make sure you follow the directions on the paint and get a paint that fits your usage. Use the same paint year after year and you will be happy.
