Coppercoat: abrading

[Koeketiene]

It's been 6 years now since we Coppercoated the boat.
It seems to be somewhat less effective than previously.
I've been advised by Coppercoat that abrading might help.

Anyone did this?
- What was the result? Effective?
- What tools did you use (if any)? The surface to ba abraded is 'substantial'

Thanks

 

[duncan99210]

We abraded the CC after it had been on for about 12 years. Used 300 grade wet and dry on a half sheet pad. Just went over the surface fairly lightly using a hose for the wet bit. Took about a day for two of us to do the hull on a 12 m boat. Hard work but worth it. When we lifted 18 months later next to no growth even after a winter in Sant Carles which is renowned for heavy growth.

 

[oldvarnish]

The last time this was discussed, an interesting idea was put forward: by giving it a rub down, what you are doing is getting rid of small traces of growth which the pressure washer has missed. These can be minute, but they may regrow when you're back in the water.
I've just given my CC the once-over with a Scotchbrite pad for that reason, and not because I think it will expose more copper.

 

[FullCircle]

You can actually put a rotary 3M smooth finish scotchbrite pad on a rotary polishing machine as used in buffing the hull, and gently go over the hull in next to no time.

 

[Koeketiene]

You can actually put a rotary 3M smooth finish scotchbrite pad on a rotary polishing machine as used in buffing the hull, and gently go over the hull in next to no time.

:encouragement:
Top tip! Thanks.

 

[geem]

Our Coppercoat is not working after 4 seasons. It has a nice blue/green look to it but according to Ewan from Coppercoat we may need to expose more copper. We are in the Caribbean so fouling and water temperature is high. We are getting barnacles so abrading looks like the only option. We have just done an experimental patch where we have abraded under water to expose copper. We will see how this patch performs before we abrade the whole hull.

 

[roblpm]

Well we are trying an interesting experiment......!

25 year old copper coat which had at some point had cruiser uno over it.

We were going to replace the cruiser uno with hard antifouling but ran out of time. So the cruiser uno is gone and we sanded the copper coat a bit! Nice and smooth!

In Edinburgh so fouling is not too bad. Will dry out in a couple of months and see how it is going!

 

[BlueHeaven]

You can actually put a rotary 3M smooth finish scotchbrite pad on a rotary polishing machine as used in buffing the hull, and gently go over the hull in next to no time.

Just about to do my boat and this sounds a great idea. I've googled it and there are a lot of different sorts. Any idea if there is a more precise name and maybe a source of supply? Many thanks