Copper coat working well but...

[Vara]

Third year running, boat lifted, jet wash of slime layer, anode changed, prop buffed and underwater fittings surveyed and found OK, boat back in water,within 25 minutes, at minimum cost.

But bottom of keel which hasn't been and can't easily be copper coated had abundant growth of sea squirts and barnacles, this will obviously adversely affect performance.

Any ideas for some unguents which can be applied to a damp surface and then immersed fairly rapidly which might discourage growth.

 

[rob2]

Not really, the only answer is to negotiate for the boat to be left in the slings for a day so you can Coppercoat the bottom of the keel. Cure overnight and launch next day.

Rob.

 

[alahol2]

If you can manage to get it dry, then just slap on a coat of standard antifouling. This is what happens with chocking points while the boat is in the slings just before launch. The antifoul seems to stay put even if it doesn't have time to fully dry.

 

[pvb]

View attachment 36295View attachment 36295

Is this a "spot the difference" quiz?

 

[Vara]

Is this a "spot the difference" quiz?

Fat fingers, small key board.

 

[croz]

I think Coppercoat would need min 24hrs to cure before relaunch to ensure epoxy has kicked fully. Otherwise agree with Alahol2 approach if short on time

 

[Vara]

I think Coppercoat would need min 24hrs to cure before relaunch to ensure epoxy has kicked fully. Otherwise agree with Alahol2 approach if short on time

IIRC 4 days is the reccomended cure time.

 

[croz]

Ive got away with 24hrs patching areas and seems to be working effectively i.e.: same as everywhere else - took advice from the local yard who apply quite a lot of copper coat. However recommendations are recommendations......;-) or is that to avoid the litigious approach

 

[ccscott49]

As long as the copper coat epoxy has gone off, (so it wont wash off) it will continue to cure underwater, doesn't need air.

 

[solentboatcharters]

Copper coating the fleet

Looks good.
We have just copper coated our Sealine T51, Fairline phantom 46 and our our Bavaria 37 yacht is ready when the rain stops.

 

[Elessar]

As long as the copper coat epoxy has gone off, (so it wont wash off) it will continue to cure underwater, doesn't need air.

It does need air. Coppercoat dries and cures. Its solvent is water. Vara is right.

 

[Elessar]

View attachment 36295Third year running, boat lifted, jet wash of slime layer, anode changed, prop buffed and underwater fittings surveyed and found OK, boat back in water,within 25 minutes, at minimum cost.

But bottom of keel which hasn't been and can't easily be copper coated had abundant growth of sea squirts and barnacles, this will obviously adversely affect performance.

Any ideas for some unguents which can be applied to a damp surface and then immersed fairly rapidly which might discourage growth.

Find an inch of leftover Antifoul of any type and colour, slap it on and help it along with a hair drier. Chances are it will be better than nothing.

 

[Vara]

Find an inch of leftover Antifoul of any type and colour, slap it on and help it along with a hair drier. Chances are it will be better than nothing.

Cheers Mark, will add AF tins to my skip diving list.

The Coppercoat on the main body of the hull is performing very well. Get occasional fronds of weed at the water line which I suspect grow on water borne sediment, but just motoring out of the berth is sufficient to wash them away.

 

[theguerns]

If you can get the yacht chocked up on the hull and leave the bottom of the keel dry I don't see why you cant leave it for a few days to dry.When I was doing this sort of work we always did this to customers yachts then put them back and moved the supports to do the patches so all was covered completely. After all isn't this what you are paying for.