We bought our 2008 B 323 last June and the survey uncovered an adherence problem with the bottom paint. The boat had been painted just before launch for the season and it was already peeling in several locations. This winter we had the hull soda blasted (thinking best to start from scratch) and now preparing to paint. We sail on the Chesapeake and there seems to be some debate about the need for a true barrier coat before anti- fouling paint. What are the thoughts on Beneteau hull compositions and their need for barrier coating?
Beneteau barrier coating
- Thread starter Faster Double
- Start date
The 323 hull is vinylester which shouldn't need barrier coating. The bottom paint was not adhering probably because the bottom was not properly dewaxed when the original bottom paint was applied. Since you sodablasted already, it probably would be prudent to go ahead with a barrier coat especially if you leave the boat in the water all year around. Just my opinion.
My 2004 323 is in fresh water and only stays in the water around four months annually. I had an adherence problem after year one. The dealer removed the original VC17 and lightly sanded the bare hull. We no longer have an adherence issue. We still repaint annually since we are out of the water for such a lengthy period of time every year.
My 2004 323 is in fresh water and only stays in the water around four months annually. I had an adherence problem after year one. The dealer removed the original VC17 and lightly sanded the bare hull. We no longer have an adherence issue. We still repaint annually since we are out of the water for such a lengthy period of time every year.
When you go to all the trouble of blasting your hull down to the gelcoat it is a small matter to prime it with an epoxy barrier coat, essential for the keel. I used Interlux Interprotect 2000, but would use InterprotectHS on the keel if I did it again, it is thicker. Use an ablative bottom paint, and don't over-apply.
I have a 2003 331 on the Chesapeake. Three years ago it experienced a similar adhesion. The marina suggested that the barrier coat was improperly applied back in 2003. So I had it soda blasted. I used 4 coats of Interprotect 2000 as a cheap form of insurance. Since it is an epoxy based product it is much less time sensitive than previous products (according to Interlux). Then a Red signal coat of Bottomkote NT, finally my ablative black Micron Extra. After 3 years the bottom looks great. I paint the black about every other year.
Thanks to all of you for your comments. It appears that the "vinylester" is indeed less susceptible to the woes of older fiberglass castings. With that said, most people, including those whom responded to this post, do not care to test the "blister" boundries. I have been convinced to throw my lot in with these non-pioneers. My local Beneteau dealer uses the Interlux 2000e for thier new boats and the yard contractor told me that they have swithed from 2000e to the "HS" product. It looks as if the "HS" may require fewer coats if the goal is to achieve a minimum mil thickness (10 mil seem to be average).