Careful with that Silicone AntiFoul

[aardvarkash10 1,114]

9 minutes ago, Steve said:

I wonder how the paint shop feels about spraying it on.

well they won't get liver flukes...

[Guest 137]

 Ivermectin? Is that what is in sheep drench? It is suppose to fix everything. According to some anyways.

Like spike proteins, cancer, cytokinetic storms. 

Bleach!  Trump uses that and his ass is never clean.

I want to try west with 33/33/33 Cu powder, Cu2O & PTFE powder + 15-20% solvent, on  a test panel.

Like an easier to clean and fresh batch of cuprous oxide on each light abraid. Cu for longevity.

Too bad when you want to recoat.

Mind comes up with odd ideas whilst on the end of RO.

AI Overview

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Yes, ivermectin can be an effective slow-release antifouling agent, particularly against barnacles. It's being explored as a substitute for traditional, more toxic biocides in marine antifouling coatings due to its environmental friendliness and efficacy against parasites. Ivermectin-loaded coatings have shown promising results in preventing barnacle colonization, both in lab tests and on actual yachts. 

• Research:

  Studies have shown that rosin-based coatings loaded with even small amounts of ivermectin (0.1% w/v) can be highly effective in preventing barnacle colonization, with protection lasting for multiple fouling seasons, according to ResearchGate. 

   
• Potential:

  The ivermectin/silyl acrylate copolymer coating has been identified as a promising alternative to traditional marine antifouling materials, according to ScienceDirect. 

   
• Barnacle Resistance:

  Ivermectin has been shown to be effective against barnacles, particularly Balanus improvisus, according to Taylor & Francis Online. 

 

[Psyche 829]

This has been mentioned before but there is no coordinated policy to control biofouling. If the govt wants less poisonous leaching from underwater coatings then failing a breakthrough in technology (let's face it, despite millions spent on R&D there's nothing but vague promises and aspirations) there needs to be concomitant policies that enable boat owners to clean their vessels easily, regularly and economically.

Instead we have the removal of hardstands, grids, poles etc, the increase in fees to use existing facilities and an acknowledged decreasing effectiveness of coatings. Now some bureaucrat wanting to make a name for themselves and perhaps head a new organisation to police the bottoms of boats has proposed new rules for fouling.... 

I suggest that there has to be some compromise between these opposing forces, if only we had an organisation that could apply political pressure.... 

[Psyche 829]

17 hours ago, Guest said:

 Ivermectin? Is that what is in sheep drench? It is suppose to fix everything. According to some anyways.

Like spike proteins, cancer, cytokinetic storms. 

Bleach!  Trump uses that and his ass is never clean.

I want to try west with 33/33/33 Cu powder, Cu2O & PTFE powder + 15-20% solvent, on  a test panel.

Like an easier to clean and fresh batch of cuprous oxide on each light abraid. Cu for longevity.

Too bad when you want to recoat.

Mind comes up with odd ideas whilst on the end of RO.

AI Overview

Learn more

 

Yes, ivermectin can be an effective slow-release antifouling agent, particularly against barnacles. It's being explored as a substitute for traditional, more toxic biocides in marine antifouling coatings due to its environmental friendliness and efficacy against parasites. Ivermectin-loaded coatings have shown promising results in preventing barnacle colonization, both in lab tests and on actual yachts. 

• Research:

  Studies have shown that rosin-based coatings loaded with even small amounts of ivermectin (0.1% w/v) can be highly effective in preventing barnacle colonization, with protection lasting for multiple fouling seasons, according to ResearchGate. 

   
• Potential:

  The ivermectin/silyl acrylate copolymer coating has been identified as a promising alternative to traditional marine antifouling materials, according to ScienceDirect. 

   
• Barnacle Resistance:

  Ivermectin has been shown to be effective against barnacles, particularly Balanus improvisus, according to Taylor & Francis Online. 

 

This is called taking the law into one's own hands, its vigilantism against bottom hugging greeblies 😁

It's what happens when there is a failure in policy which is unacknowledged and a need to take action, I have no doubt that if there was a glow in the dark additive that was easily available such as tributyltin, people would use it.

[Guest 137]

"due to its environmental friendliness and efficacy against parasites."

Like antibiotics in chook feed? Or hydrolyzed chook feathers to create high protein salmon food? Baltic sea fish meal with higher than acceptable heavy metals and industrial waste content.  What could go wrong?

 

[Zozza 357]

I am going to come off the long run here and bowl a couple fast paced bouncers aimed at the head of the tit-heads that have basically banned all the anti-foulings that used to work:  If someone were to set up a black market business making proper fouling from yesteryear that works - I would buy it and the "oh but you are destroying the marine environment" crowd -  can go f**k themselves.

To use a Bernie Sanders type analogy adapted for the marine environment, one could argue (and be 100% f**cking correct) that "the Oligarchy of top 1% of polluters, all from the corporate and industrial sector, keep breaking the rules polluting our oceans at a large massive scale with no accountability, the bottom 99% have to follow the rules and suffer both the recreational and environmental issues as a result". 

Another analogy would be the Tax authorities going after a Tradie that does a few cash jobs on the side as the govt might be missing out on a tiny 0.000001% of its overall GST take, yet they let big corporates get away with tax evasion and instead gift them corporate welfare.  

Enough.  This sh*t has to end.  

Of course, the $64,000 is how the hell do we end this bullsh*t?
 

[aardvarkash10 1,114]

39 minutes ago, Zozza said:

Of course, the $64,000 is how the hell do we end this bullsh*t?
 

Train as a biologist withe a double major in organic chemistry and then specialise in marine organisms and their susceptibility to different targeted chemicals presented in a semirigid polymer coating.

At the moment we are stuck in a double bind.  We want a product that deters fouling, but we also want marine environments that support marine life.

If you use an effective antifouling and it relies on a poisoning process for effectiveness you will be harming the marine environment.  The future likely lies in systems that are purely contact topical and don't wear off so cannot generally pollute, or systems that discourage growth through a non toxic mechanism eg ultrasound.

[Zozza 357]

10 minutes ago, aardvarkash10 said:

 

If you use an effective antifouling and it relies on a poisoning process for effectiveness you will be harming the marine environment.  The future likely lies in systems that are purely contact topical and don't wear off so cannot generally pollute, or systems that discourage growth through a non toxic mechanism eg ultrasound.

I get it Aard, but there is little we do in modern civilization that does not induce toxicity into the environment marine or land (we are not going back to live in caves) - yet, it appears to be that the biggest polluters get away with it that do 99% of the damage, and recreational boaters who in comparison would release an infinitesimally small amount of toxicity have to follow the rules.  Sorry - it's bullsh*t.

[Frank 175]

On 11/05/2025 at 11:37 AM, Steve said:

Paint is Less than questionable. It just doesn’t bloody work any more. Spoke to Jim Lott yesterday and he’s saying a pint of Ivomec sheep drench with the paint. No he hasn’t tried it. Yes, there’s lots of these sorts of urban myths doing the rounds. Apparently there are a couple of products approved in Europe which are working. But not here yet. I’m pretty sure the European standards would be good enough for us so not sure what the holdup is. 

I have heard of Roundup being added as well, no idea if it works,

[Frank 175]

On 12/05/2025 at 5:38 AM, Zozza said:

So, you know when we had antifoul that really worked with the "good nasties" in it -  was it really that damaging to the ocean when we consider how much damaging environmental waste water is released into the ocean by all the worlds cities, and industrial centres?  The "damage" that proper antifouling did to the environment surely has to be infinitesimal small in comparison? Or am I just doing sort of Joe Rogan type "Bro Science" here - though I feel the comparison I make is probably valid.

I hear ya, and TBT was before my time but I must admit wikipedia paints it as pretty evil Sh*t once it leaches into the envirramint, it does a real number on the innocent critters. On the other hand if I recall correctly they allowed its continued use on large ships for many years https://en.wikipedia.org/wiki/Tributyltin

[MartinRF 75]

According to a friend working as a marine engineer for commercial shipping there is only one difference in the anti fouling laws for pleasure boats and ships: The law acknowledges the fact that ships are not repainted every season. Hence, longer transition time for new bans. This is in Europe as far as I know so your mileage may differ.

/Martin

[Steve Pope 253]

8 hours ago, Frank said:

I hear ya, and TBT was before my time but I must admit wikipedia paints it as pretty evil Sh*t once it leaches into the envirramint, it does a real number on the innocent critters. On the other hand if I recall correctly they allowed its continued use on large ships for many years https://en.wikipedia.org/wiki/Tributyltin

Yes TBT worked well. the problem wasn't from the boats that were regularly used but the ones that sat in the marina almost all year round and the increasing amounts of the active properties building up on the sea floor underneath. That is where the initial tests were done in France. The well used boats also shed their antifoul properties but over a very much larger area so there was basically no definable traces in the ocean / seas