Lost VC-17 and Barrier Coat

[spartonboat1]

Found an interesting situation, after my haul out and pressure wash-down.

When I returned a week later, after blocked and jacked, I found the area of the bow, which rides forward most and just below the water line, while at cruise, was stripped clear of bottom paint and barrier coat (Interprotect 2000), for a length of 6 feet or so at the prow and the keelson to about 6-10 inches above the keel. This has never occurred before, in the 10 years or so since barrier coated and the 5 years since converting to VC-17. However, this last Spring was the longest run I have taken in several years of 2 days, or 16 hours total.

I am not giving the yard grief, but simply requesting that come Spring 2013, that they move the block that prevents access to a bare area, so I can re-barrier coat and apply more VC-17 to the affected area.

I always apply 2 coats of VC-17 in the Spring, and if barrier coat is exposed, and looks a little thin, I apply more. As you know, the Interprotect 2000 has a long pot life and at least 10-12 hours to cure, whereas VC-17 dries in 20-30 minutes.

I've got to figure out how to post a picture, to provide a view of the issue.

Anyone ever encounter this before. Would a long run (16 hours) in clear, Great Lakes water cause this to occur?

Thanks,

 

[Canuck Dennis]

Lack of proper sanding and primer application ?

 

[smoothmove]

pulling this - failure to read carefully.

 

[Boatsb]

If the interprotect is gone without a trace of sanding or being abraded off it was probably not adhering to the hull. Prep could have been bad. Did you apply it? Was the hull sanded than applied to the bare glass?

 

[spartonboat1]

If the interprotect is gone without a trace of sanding or being abraded off it was probably not adhering to the hull. Prep could have been bad. Did you apply it? Was the hull sanded than applied to the bare glass?

Update: Here is an email response from the marina owner to my inquiries about the box loss of paint/barrier coat: "...the forward 4-5’ of barrier coat has been sanded down by rubbing on bottom, which could have happened this year with the record low water while sitting in the slip."

So the marina is basically indicating that low water caused the boat to sit against the bottom just enough to erode the coatings on the hull, while I was sitting at their dock! A little warning might have been in order, but who knows?

Rather than get into a disagreement with the marina, I will just pay to have it re-coated. Besides, there is no gel-coat on that part of the hull, since Hatt Dealer "stripped" the gel-coat, before barrier coating. My bad for agreeing to that I guess. We discussed the concept here on the HOF, before I had it done.

Finally, I will be at the marina this weekend and will "measure the water depth" near the dock, where the prow/bow was riding. P.s., never left the dock once this year, due to a massively busy schedule! Did get some blessed sleep aboard this year though. Maybe next summer better luck about getting underway.

Also, I will be checking water depths at a couple other marinas. I am sure where I am that they will tell me to tie up further back on finger pier, 5 or 10' to get into deeper water, rather than be near the dock where the pier attaches to the shore.

The bottom paint saga continues...

 

[34Hatt]

Update: Here is an email response from the marina owner to my inquiries about the box loss of paint/barrier coat: "...the forward 4-5’ of barrier coat has been sanded down by rubbing on bottom, which could have happened this year with the record low water while sitting in the slip."

So the marina is basically indicating that low water caused the boat to sit against the bottom just enough to erode the coatings on the hull, while I was sitting at their dock! A little warning might have been in order, but who knows?

Rather than get into a disagreement with the marina, I will just pay to have it re-coated. Besides, there is no gel-coat on that part of the hull, since Hatt Dealer "stripped" the gel-coat, before barrier coating. My bad for agreeing to that I guess. We discussed the concept here on the HOF, before I had it done.

Finally, I will be at the marina this weekend and will "measure the water depth" near the dock, where the prow/bow was riding. P.s., never left the dock once this year, due to a massively busy schedule! Did get some blessed sleep aboard this year though. Maybe next summer better luck about getting underway.

Also, I will be checking water depths at a couple other marinas. I am sure where I am that they will tell me to tie up further back on finger pier, 5 or 10' to get into deeper water, rather than be near the dock where the pier attaches to the shore.

The bottom paint saga continues...

So are you saying the 16 hr run is all it did this year and it sat then the paint is gone?

If so I agree with the marina I put about a 1000 nm on mine this summer and the bottom paint still has the roller stipple in it.

 

[spartonboat1]

Finally completed all winterizing Sat, Nov 10, which is a little late, as getting used to new marina storage.

Curious about the slip depth I took a long boat hook and probed where the boat had been riding. Whoa...didn't take long...only 1' of depth. The water has dropped a good foot, maybe foot and a half since we were hauled, so I was in about 2.5' of water, where the bow was riding, about 5-6' back from the dock. 10-12' back and next to the finger pier, much deeper. I could feel a groove in the bottom where the bow had been riding on the bottom.

So I would say that the mystery of the worn bottom paint and barrier coat is solved, in light of the lack of depth. I have always been in a slip of 6-7' min, so the lack of depth caught me off guard.