CopperCoat with weedkiller

[Daydream believer]

Back to the original post. CC is expensive! Like Stingo, I am a strong advocate of its use. Why on earth would you modify the mix when it works as it is, and then risk the whole lot falling off or becoming ineffective. The mind boggles. The small amount of weed that does gather in my experience, comes off with a brush if necessary but really doesn't slow the boat down to any degree.

On the contrary. Whilst coppercoat repels barnacles quite effectively, it does not stop the thick layer of slime build upin a very short time. My own boat becomes virtually un sailable in 12 weeks. I have spoken to lots of people who agree. I have spoken to professional people who actually jet wash the boats & they all report layers of slime in varying thicknesses. This comes off easily enough. However, if the boat's performance is affected then one can suggest that the product is not doing the job properly. There is also the problem of weed growth around the waterline. Even those that love Coppercoat sometimes admit to that problem.
I use coppercoat to avoid annual antifoul painting & over the years it has been cheaper to launch the boat clean at the startof the season. Go sailing to the channel islands, or whatever. Then have the boat jet washed mid season for the same cost as an application of paint & equipment. Then finish the season off.
I have shogun 33 on the keel & that does significantly better than coppercoat. I was looking at the boat today & note that it also does a better job of holding back the rust. I do not mind antifoul paint on the keel as it is easy to do & a small area.
Would I have coppercoat again-- yes-- but i do know its limitations & it is NOT as good, performance wise, as some paints.

 

[Rhylsailer99]

https://www.amazon.co.uk/Copper-Pow...7&psc=1&mcid=5f2896bb9f10393a846776485e86d143
Would mixing a few scoops of the above into a traditional antifoul improve its antifouling properties.

 

[Chiara’s slave]

Oh without a doubt it's totally possible to scrub a 20 ft boat like yours and keep on top of it I bet it's lovely not having slime etc on the bottom and I bet you get an extra knot or extra and it looks nicer as well .... . Unfortunately I'm not so mobile these days so I'm a little limited to scrubbing time

My XOD has conventional antifoul, in white. What you buy in any chandlers. It has to be white so you can see any slime or weed. We have coppercoat on a 30ft tri. I get in the water and scrub off by swimming, with a brush and a nylon pad. If I were not so mobile, and/or not so good in the water, I would either pay someone or put up with it. Not use commercial antifoul. In this age, it’s seriously shocking that anyone would do that in UK waters, regardless of their mobility.

 

[Rappey]

Commercial anti foul is sometimes no more effective than chandlery af. Some are for vessels that spend most of their time moving around 18 knts.
Not good for a sail boat as it just weeds up

 

[gaylord694]

My XOD has conventional antifoul, in white. What you buy in any chandlers. It has to be white so you can see any slime or weed. We have coppercoat on a 30ft tri. I get in the water and scrub off by swimming, with a brush and a nylon pad. If I were not so mobile, and/or not so good in the water, I would either pay someone or put up with it. Not use commercial antifoul. In this age, it’s seriously shocking that anyone would do that in UK waters, regardless of their mobility.

Horses for courses I suppose never mind slave cha at least yours has some nice white that must look beautiful

 

[Chiara’s slave]

Horses for courses I suppose never mind slave cha at least yours has some nice white that must look beautiful

You just know if it doesn’t look fast. It has no other function.

 

[andrewbarker]

Weedkillers such as RoundUp operate on higher plants ONLY; they are very specific and don't work on algae, bacteria, or other things that attach to our boats' bottoms. Their idea is to kill weeds and not crops! They have little or no effect on anything in the animal kingdom. So it is very unlikely that it would have any effect. The other thing is that homebrews such as the OP describes are illegal in the UK and EU; the formulation of things like antifoul is subject to licensing and has to follow environmental legislation.

I'll say it again, but effective antifouling is a BIG economic issue. Not for our benefit, but for commercial shipping, port facilities, oil and gas installations and many, many more marine systems where downtime to remove fouling loses a LOT of money. Most of what we have access to is trickled down from the big boys. And there is active research going on to try and produce more effective systems. The "slippery" antifouls that are effective for motor boats and high speed sailing boats are such.

Please, please don't trust your own advice! Roundup (glyphosate) is highly, highly toxic to humans and other animals. It can (and does) cause organ failure and death. The surfactants and other additives make it even more dangerous.

 

[KevinV]

Please, please don't trust your own advice! Roundup (glyphosate) is highly, highly toxic to humans and other animals. It can (and does) cause organ failure and death. The surfactants and other additives make it even more dangerous.

Statements that have so much support in fact that it is still entirely legal in most countries across the globe

 

[thinwater]

Weed killer isn't illegal,people use it all the time on there gardens you can actually buy it in Sainsbury's

Read the label. Puting it in the water is against the label restrictions and is illegal. This is ... obvious and true of virtually all pestacides. Well known, I thought.

"Do not apply directly to water, to areas where surface water is present or to intertidal areas below the mean high water mark...."

 

[gaylord694]

Read the label. Puting it in the water is against the label restrictions and is illegal. This is ... obvious and true of virtually all pestacides. Well known, I thought.

"Do not apply directly to water, to areas where surface water is present or to intertidal areas below the mean high water mark...."

Absolutely hilarious people getting on there high horse where's people's sense of humour.

 

[Snowgoose-1]

https://www.amazon.co.uk/Copper-Pow...7&psc=1&mcid=5f2896bb9f10393a846776485e86d143
Would mixing a few scoops of the above into a traditional antifoul improve its antifouling properties.

Just wondering if it might interfere with the paints binders etc. and possibly interfere with adhesion. Providing it is legal , would be fun to try it on say a rudder or keel near the end of the tin.

So years ago, a pal and I would go off cruising each in our own boats. His performance was notably poorer than usual one time at the start of the season.

We dried out on some posts to find out if he was dragging something. It turned out to be chili peppers granules that he added to his AF. Quite coarse when rubbing a hand over the hull.

 

[thinwater]

Absolutely hilarious people getting on there high horse where's people's sense of humour.

opps!

That said, it sounded like a statement of fact to me, so it probably sounded like a statement of fact to the OP and to others. Dry humor is tricky.

 

[Chiara’s slave]

It’s always hilarious when you’ve made a public idiot of yourself, but nobody else sees the joke.

 

[gaylord694]

It’s always hilarious when you’ve made a public idiot of yourself, but nobody else sees the joke.

Well not to worry I'm sure nobody will judge you after all ...... . Personally I'm really interested in different views on antifoul

 

[oldharry]

It’s always hilarious when you’ve made a public idiot of yourself, but nobody else sees the joke.

Its not WHAT is said,its HOW its said. And that dont work on t'internet!

 

[Chiara’s slave]

Well not to worry I'm sure nobody will judge you after all ...... . Personally I'm really interested in different views on antifoul

I’m very interested in legal, moral and environmental ways of reducing fouling.

 

[thinwater]

I’m very interested in legal, moral and environmental ways of reducing fouling.

Then back to the topic, sort of.

I just finished a 30-paint test for Practical Sailor in the Chesapeake Bay, brackish, high fouling). Unsurprisingly, traditional high copper formulations did pretty well (but not all of them did well), including the new Trinidad. But one of the copper-free paints, Total Boat Krypton, did just as well as Trinidad at 2 years, so that is what I re-painted with. In fact, it was best for the first 18 months. It was also one of the 6 paints I actually used on the boat for 2 years.

It's complicated. Some paints do better certain places and not others. I can't imagine trying to guess if adding something would help. In the case of Copper Coat, it doesn't work around here anyway. I'm happy enough with a good 2-year paint. But they aren't all "good."

 

[Chiara’s slave]

As you might surmise, not much works around my way. Almost all boats in the harbour have a lot of growth. Our coppercoat ‘works’ as well as any other coating, and it’s scrubbable, long term. That makes it the best bet. Personally I cannot see how adding another chemical to it can help for any more than a few weeks. Only the bit exposed to the water is working anyway. The rest is encased in epoxy.

 

[Chiara’s slave]

Then back to the topic, sort of.

I just finished a 30-paint test for Practical Sailor in the Chesapeake Bay, brackish, high fouling). Unsurprisingly, traditional high copper formulations did pretty well (but not all of them did well), including the new Trinidad. But one of the copper-free paints, Total Boat Krypton, did just as well as Trinidad at 2 years, so that is what I re-painted with. In fact, it was best for the first 18 months. It was also one of the 6 paints I actually used on the boat for 2 years.

It's complicated. Some paints do better certain places and not others. I can't imagine trying to guess if adding something would help. In the case of Copper Coat, it doesn't work around here anyway. I'm happy enough with a good 2-year paint. But they aren't all "good."

Looks like that’s not approved for UK.

 

[gaylord694]

Looks like that’s not approved for UK.

Thinwater join the dark side with your other fellows