SK A340
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Posts: 829
Joined: Thu Mar 09, 2000 2:44 am

Painting A Boat Or Not?

Tue Apr 15, 2003 6:22 am

I have a question regarding boats and owergrown hulls.

I once had a brand new boat and had it in the water for one summer without any ground paint (the paint that avoids seaweed and shells to grow on the boat). When I took up the boat at the end of the summer the whole hull was covered in shells. It was not a pretty sight. After that I always put on at least one layer of paint every year, eventhough there already are remaining paint from the last summer on the boat.

Now, my uncle is going to buy a new boat and according to the salesman, he does not need to paint the (plastic)boat the first year. This is because some kind of coating that is on the plastic when the boat is new. I recommended him, though, to paint the boat based on my experiences with my own boat. But that was back in 1995. My question is now; does anyone know if the new coating on boats really is that good. Do you have to paint the boat or can you use it for one season without any paint?
The boat is going to be used in the archipelago of Stockholm where the water is around 18-22 degrees Celsius and contains very little salt.

/SK A340
Posts: 3094
Joined: Tue May 18, 1999 6:40 am

RE: Painting A Boat Or Not?

Tue Apr 15, 2003 6:43 am

I'm assuming your talking about a fiberglass hull?

Fiberglass is not anti fouling.

I've never heard of an antifoulng agent applied to a hull at the factory.

Anti fouling paints contain biocides such as copper that repel marine growth. Some new anti fouling paints contain digestive enzymes instead of biocides, and are earth friendly. Some paints are also ablative, meaning they wear away as the boat moves through the water shedding anything that is attatched to it.

If your going to keep your boat in the water an antifouling coating is a must as you already know.

Paint the bottom !

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Joined: Fri Mar 07, 2003 3:25 am

RE: Painting A Boat Or Not?

Tue Apr 15, 2003 9:04 am

Find out about Micron 33 made by International Paint Company. They have an office in England and im sure that they can help you out. We use it on our boat with excellent results. The beauty of this paint is that one can leave the boat sitting for a while and once it starts moving every bit of slime and barnacles slide off quickly. Good luck.

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RE: Painting A Boat Or Not?

Tue Apr 15, 2003 11:37 am

Thats ablative paint. Almost all paints now are ablative. They aren't offering anything that anyone isn't already offering.

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Joined: Wed Jul 07, 1999 11:27 am

RE: Painting A Boat Or Not?

Tue Apr 15, 2003 1:11 pm

The types of anti-fouling paints have gotten much smaller recently due to environmental rules.

Actually today wooden boats have a lot more problems with marine borer worms then they did 50 years ago. We have cleaned up our water so those marine waters are cleaner then they where. It used to be that the water was poluted enough around some cities that it did a pretty good off keeping the worms down

If it is a boat that is ment to be hauled out and trailered constantly I wouldn't worry about it. The air time on the trailer will be enough to kill any marine life that might attach.

As far as fiberglass boats that live at the dock year round, I am not up on them. Most fishing boats are still or welded aluminum. That material tends to stand up better when you bottom the boat on shore.

The steel definately gets the anti-fouling treatement. The aluminum boats do if they again live year round in the water, a lot of the guys that keep their gillnetters on shore during winter skip that since the boat is usually out of the water.


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