Join Date: Oct 2004
Location: Narragansett Bay
Thanked 2 Times in 2 Posts
Rep Power: 15
Last weekend, I visited my boat, which has been hauled out for the winter. To my astonishment, I discovered the bottompaint is beginning to separate from the bare hull in sheets - strangely though, only on the starboard side.
During winter layup at the seller's boat yard, just after buying True Blue in 2004, I hired the yard to repair some minor hull blisters - minute in size, but since osmotic, my surveyor recommended a proper repair anyway. This yard is a long-time family business with a reputation for excellent work, so I was confident in thier work and quoted price (cost covered by seller's negotiated, post survey price reduction).
The yard stripped the antifouling paint, drilled out all blisters and tented the hull to a heated slab in the paint shop for a few weeks until favorable moisture meter readings were obtained. Next, the hull was faired smooth and an 8 ml coating of Interprotect 3000 was sprayed on, exceeding minimum Interlux thickness recommendations. I was pleased with the results and so was my surveyor. The boat was then shrinkwrapped and moved outdoors in February, to wait out the remaining drydock season.
The bottom was as smooth as silk - looked like the hull was just released from the mold. The yard manager/owner, informed me that nothing else needed to be done except apply bottom paint. "No further surface prep is necessary?", I asked . . . "Nope, she's all ready for paint, nothing else is needed.", was his reply. So, I applied three coats of dark blue Interlux Micron Extra, with Biolux - directly to the hull and the boat was splashed a couple days later. I then sailed her the few miles south to my marina slip, which we had for ten years with the prior boat.
There were a couple of small patches of paint peeled off after haul out last season, which I spot coated before applying a fresh coat of Micron Extra, in Spring of this year before launch. I just attributed this to an over-aggressive pressure washer. After this season's haul-out however, the peeling is very extreme. About 20% of the paint is flaking off and more can be easily chipped with very little effort.
What may have caused this to occur, and what is recommended as a solution to this problem before Spring launch? I can only assume, the newly sprayed epoxy barrier coat, should have been treated before my applications of bottom paint, 2 years ago. I am now fearful that a spot repair would only be a temporary fix, but am not looking forward to total paint removal.
True Blue . . .
sold the Nauticat