New boat - antifoul?

[Daydream believer]

I have a brush system for my boat but that is NOT soft slime. I did note that when I spent some time in the calladonian canal a few years ago there was a marked reduction in the growth. I think that the fresh water kills the growth on coppercoat very quickly. When I scrubbed at Inverness there was less than I expected. The same happens when one gets into the freshwater areas of the Dutch canals. I can tell by the speed increase against revs, as I travel north.
Knowing how manufacturers twist the truth, it would not surprise me if your example is taken from fresh water. That would might explain the difference in performance of the trilux, which I have found to be more than equal to coppercoat on every count. The speed of the craft may also have washed the Trilux off & cleaned the coppercoat. So all is not what it seems.
But we would never agree
What I will say, is that coppercoat has the benefit that it does not need application at the start of the season. (Along with the labour that gives me severe migraines working under the boat). Apart from light abrasion that is.
I tend to work jetwashing around my sailing. ie I go to the channel Islands for hols with the wife & daughter & when I get back I jetwash ready for Ostend & the paulusfeesten & visits by my family for more hols. Followed by trips up the canals of Holland
Then lift & wash for lay up at winter.
That means that the cost of antifoul paint is covered by the cost of jetwash. Last weekend cost me £ 194.05 including 2 enjoyable nights in Shotley.
I am considering another application of coppercoat at the end of this year( must be approaching 9 years now & it has been well abraded in desparation) but I will do it with my eyes open, knowing not to expect the false claims of the manufacturer

 

[Elessar]

I have a brush system for my boat but that is NOT soft slime. I did note that when I spent some time in the calladonian canal a few years ago there was a marked reduction in the growth. I think that the fresh water kills the growth on coppercoat very quickly. When I scrubbed at Inverness there was less than I expected. The same happens when one gets into the freshwater areas of the Dutch canals. I can tell by the speed increase against revs, as I travel north.
Knowing how manufacturers twist the truth, it would not surprise me if your example is taken from fresh water. That would might explain the difference in performance of the trilux, which I have found to be more than equal to coppercoat on every count. The speed of the craft may also have washed the Trilux off & cleaned the coppercoat. So all is not what it seems.
But we would never agree
What I will say, is that coppercoat has the benefit that it does not need application at the start of the season. (Along with the labour that gives me severe migraines working under the boat). Apart from light abrasion that is.
I tend to work jetwashing around my sailing. ie I go to the channel Islands for hols with the wife & daughter & when I get back I jetwash ready for Ostend & the paulusfeesten & visits by my family for more hols. Followed by trips up the canals of Holland
Then lift & wash for lay up at winter.
That means that the cost of antifoul paint is covered by the cost of jetwash. Last weekend cost me £ 194.05 including 2 enjoyable nights in Shotley.
I am considering another application of coppercoat at the end of this year( must be approaching 9 years now & it has been well abraded in desparation) but I will do it with my eyes open, knowing not to expect the false claims of the manufacturer

Ah so we circle back to “I’m not sure what you’ve done wrong” then.
And there it is!
“Apart from a light abrasion”.

You don’t abrade Coppercoat every year. An internet myth. Where does it say that in the manual?

Normal antifoul gets to full strength after a week or so.
Coppercoat after a couple of months. So the first year it performs the worst being weaker for a part of it.

You are having a first year every year.

You may need to abrade after five or six years if the performance stops off.