Adding copper powder to antifouling

[Montanan]

https://www.sailmagazine.com/diy/reg...fouling-paints

[fstbttms]

Originally Posted by Montanan

https://www.sailmagazine.com/diy/reg...fouling-paints

Even though this article is only 5 years old, much of its information is already outdated, most notably the direction and scope of anti fouling paint legislation in California and Washington as well as mention of some secondary biocides that have since been made illegal in the U.S.

What is absolutely current and true is this statement, "Copper compounds in antifouling paints will be around for a long time."

[myketch42]

ALthough the company hems and haws about using it on aluminum , I couldn't take the chance , my new boat is glass and the recipient of the copper cote.

[RaymondR]

I take the view that if you are going to the expense of adding copper powder to antifoul, particularly ablative, why not go the whole hog of adding it to epoxy, applying the mixture, lightly sanding to expose and thereby emulating Coppercoat?

You can still apply ablative over that if any parts entirely ablate or are entirely leached, you might still avoid fouling.

[Franziska]

Originally Posted by goboatingnow

Cause poisoning the water to go sailing isnt sustainable .

But global shipping is?

Boats global antifouled surfaces are a tiny tiny tiny tiny tiny percentage on what's on the big ships.
That is were one needs to reduce because if you tackle that you will get suitable solutions for leisure boats too.
That's were suddenly big time research money could appear from too.

The problem is everyone depends on big shipping so everyone is afraid to tackle the major problem first.

To go after the small boats first is ridiculous, they are just a cheap scapegoat.

[s/v Jedi]

Originally Posted by Franziska

But global shipping is?

Boats global antifouled surfaces are a tiny tiny tiny tiny tiny percentage on what's on the big ships.
That is were one needs to reduce because if you tackle that you will get suitable solutions for leisure boats too.
That's were suddenly big time research money could appear from too.

The problem is everyone depends on big shipping so everyone is afraid to tackle the major problem first.

To go after the small boats first is ridiculous, they are just a cheap scapegoat.

Exactly. And with our boats, being self reliant and independent of “them” they hate us so for them it’s a win-win to push their “get the cruisers” policies while acting like saviors of the environment

[I14]

The big paint companies are doing a lot of R&D on environmentally friendly solutions for commercial vessels (as noted, that's where the money is) including silicones and natural biocides and have commercialised some of them

[s/v Jedi]

Originally Posted by I14

The big paint companies are doing a lot of R&D on environmentally friendly solutions for commercial vessels (as noted, that's where the money is) including silicones and natural biocides and have commercialised some of them

Please list which ones. Links would be helpful, not just to the products but also to the research you describe

Do you work with these big paint companies?

[I14]

AF's aren't my field of expertise although I have an interest of course and, as I mentioned I make my own cuprous oxide ablative plus a silicon foul release coating but don't work for any of the local manufacturers. I have a good friend/ex colleague who is very much involved in local research on AF's, under contract to one of the main players called Altex, as often the formulations are area specific due to differing challenges i.e. what works in the US might be hopeless here, in NZ, and vice versa. I get updates on advances in coatings generally which often mention new A/F's, the big players being Hempel, Jotun, PPG etc but don't normally follow them up. I will ask my friend what he has seen internationally and post the results.

[skipperpete]

In the not too distant past TBT was quite common and the ban came quite slowly and the first was the requirement of shipyards to install substantial capture and storage structures then the ban on pleasure craft application and progressively..... commercial vessels under 25m , then under75m. I couldnt find the actual documentation from AMSA or EPA so can’t provide a timeline.
The company I worked for used International paint ( Plum and Pink) in alternate coats, usually 4 but not so much for sheer longevity, more for ease of fast haulout/drydock turnarounds... in the time it took to do the survey on the hull and shafts the crew had the hull waterblasted to the new colour.
I still see (and smell) TBT being used in Asian shipyards and its possible to easily buy raw TBT,but searches of all major paint manufacturers product lines have no mention of TBT other than “TBT Free”.
In France where my boat is stored, the number of boats on pontoons afloat is relatively small and we are mostly all hauled out in generic steel cradles.

[s/v Jedi]

Originally Posted by skipperpete

In the not too distant past TBT was quite common and the ban came quite slowly and the first was the requirement of shipyards to install substantial capture and storage structures then the ban on pleasure craft application and progressively..... commercial vessels under 25m , then under75m. I couldnt find the actual documentation from AMSA or EPA so can’t provide a timeline.
The company I worked for used International paint ( Plum and Pink) in alternate coats, usually 4 but not so much for sheer longevity, more for ease of fast haulout/drydock turnarounds... in the time it took to do the survey on the hull and shafts the crew had the hull waterblasted to the new colour.
I still see (and smell) TBT being used in Asian shipyards and its possible to easily buy raw TBT,but searches of all major paint manufacturers product lines have no mention of TBT other than “TBT Free”.
In France where my boat is stored, the number of boats on pontoons afloat is relatively small and we are mostly all hauled out in generic steel cradles.

Easy to find, made in USA: https://www.islandwaterworld.com/isl...-1-gal-nn12343

[goboatingnow]

Anyone using TBT is being irresponsible in my view.

[chrisr]

Originally Posted by s/v Jedi

A thread ruled by ignorance and the art of twisting the obvious until it appears like the opposite. There must be politician wannabees here.

It seems in situations like these it’s best to completely ignore posts that are based on nothing more than personal opinion. If you want to add weight to your posts, add citations, not shouting it louder.

well said...this could apply to nearly all CF threads...

cheers,

[goboatingnow]

The information is at the end of a Gough’s search about tin based anti fouling , it’s not my job to educate you.

[fstbttms]

Originally Posted by s/v Jedi

Easy to find, made in USA: https://www.islandwaterworld.com/isl...-1-gal-nn12343

Islands 44 Plus does not appear on the Sea Hawk web site. I wonder if it has been discontinued since International Paints bought the company.