Originally Posted by fstbttms
Perhaps. But that doesn't explain the poor performance in SoCal described by others on this forum.
My personal opinion is that Coppercoat releases so little biocide that it cannot effectively retard fouling growth here.
From what I've seen (btw, we were in San Diego
the first year of use of this stuff and we've been back there off and on since then as well as to Newport Beach
harbor -- also a silty place), it is really and truly very sensitive to the installer. We had no real problems with it in So Cal
. The reason I say it's sensitive to the installer is because I'm the person who did ours pre-launch 2009, touch up when we raised the waterline 6/2010, and when we re-did our bootstripe and touched up the keel
10/2013. I applied it with a roller and especially on the keel
touch up and the work on the bronze, I know the little things I did differently and how it impacted the Coppercoat.
For example, I used a brush (not roller) without taping off the edges to touch up a couple feet of planking seams where the seam compound had "pooched" out and put little cracks in the bottom paint
. (aside, our boat was newly planked and expected to have a lot of these pooching seams within a few months of launch which is why we hauled out only 1 year after launch to simply fare the hull
and deal with all the pooches here and there) I scraped off the pooch and brushed over it (in 2010) and those lines were areas that always, always got little bits of growth on them while the rest of the hull
didn't. Same for a couple other spots on the keel touch-up that were done differently in 2010 than the rest of the hull. So, in 2013, I went back to those areas, sanded and taped them off and used a roller to do them properly. I can only surmise from what I know of how I did the painting that the too-thickly applied coppercoat allowed the copper to not be near the surface of the carrier material in those spots. And--it was a problem only where I KNOW I applied using a brush or the layer I put on was thicker than usual.
For me, knowing how I painted the bottom and how it is working let me know that it is sensitive to application. I'm very detail oriented--even if not consistent! in how I do things
Many people won't admit that they've done something that could impact the performance of a product. And there are others who aren't so detail oriented and may not even that they've applied something not to spec.
So I was new at applying coppercoat in 2009. I now have 3 experiences of applying the material and seeing (while diving/cleaning the boat) what the impact of how I apply the stuff is on my boat. I'm not really sure how a boatyard employee--even a good one--assesses the effectiveness of their own paint
job. I mean, they're not the ones diving
on the boat to see what difference their technique made. Sure, over time, they're going to figure it out and do great jobs of applying it--but how often does the same boatyard employee get to apply the material and get feedback? In the meanwhile, the customers may be very unhappy with the product though.