Hi Claus,
I hope Coppercoat is all it is cracked up to be as I am the one paying for it. It is a proprietary antifouling, URL
http://www.coppercoat.com/
It is an epoxy resin impregnated with copper filings. The theory is that the epoxy gradually erodes and exposes new copper. Practical Boat Owner have tested it over 14 years and say it is still good, so I hope it is. Can't be worse than the XM I used last year which seemed to disappear after about three weeks!
Julian,
thanks for the link. Sounds to me too good to be true. Maybe they did have a longlasting formula in the past, but that may have been due to their using strong biocides in addition to the copper particles. Some years ago the ban on strong biocides kicked in, and ever since most antifouls are no longer what they used to be.
However, I would like to try it out, but there does not seem to be a single stockist in all of Germany.
The good thing is that it is Epoxy based, which should give good adhesion to the epoxy hull (on Llafurio), and that it very likely can be painted over no prob if it should fail the high expectations.
So far, I had been quite happy with International VC Offshore, no growth on the hull in brackish water, just a sort of slime cover build-up which can be hard-sponged off once in a while on a sandbank. But I still must renew the coats every two years.
Recently I was looking at 'Hempel Water Glide', which is available here and also has a copper finish look. Downside is the new hull needs to be sanded first.
Anyone with a patent solution for an antifoul for a trailer sailer, please come forward.