If you don 't know what the previous owner used on the bottom of the boat, how do you know if the stuff you 're about to put on is compatible?

Last year I put some expensive Micron 66 on the bottom of Toodle-oo! It did well, I was happy when she was hauled last year... but... in reviewing it this Spring, I see that much of the bottom paint is now flaking off. Is this because of an incompatible previous coat, or perhaps because the Micron 66 has dried out over the winter and is now flaking. (Yes, I wish I had paid closer attention last year when she came out of the water...)

If paint is incompatible with the previous layer, does it show that fact immediately upon application?

Thanks,

Bill Balme

Elsewhere in the Forum RobbieW and Daria have commented on coppercoat .http://forum.oceancruisingclub.org/28-corrosion-a-antifouling/155-coppercoat-and-other-epoxy--copper-antifouling

We are certainly thinking seriously about it within the next year or two. We have friends that have had great success. Our boat, like yours, now has 6 seasons worth of Interspeed Ultra on it and I suspect all will need to come off in a year or two so that will be the time for us to take the plunge.

In the UK costs of hauling and painting are increasing substantially so it 's starting to look more attractive financially. The tests I have seen published aren 't very scientific but they do seem to bequite favorable.