Antifoul Paint - Do you add any 'extras'

[grantmc]

I've read various suggestions of adding a variety of substances to antifoul to make it more potent and extend its life. Here are a few:
Cayenne Pepper and various curry and/or chllli concoctions
tetracycline powder
copper naphthenate powder or cuprous oxide
Tributyltin oxide (TBTO)

I even wondered about just adding a cup full of fine cooper filings from the machine shop to a 4 litre (gallon) can.

Just wondering what the experiences have been of those people who've tried any all of these. Particularly with soft ablative paint for yachts.

[fstbttms]

Originally Posted by grantmc

I've read various suggestions of adding a variety of substances to antifoul to make it more potent and extend its life. Here are a few:
Cayenne Pepper and various curry and/or chllli concoctions
tetracycline powder
copper naphthenate powder or cuprous oxide
Tributyltin oxide (TBTO)

I even wondered about just adding a cup full of fine cooper filings from the machine shop to a 4 litre (gallon) can.

Just wondering what the experiences have been of those people who've tried any all of these. Particularly with soft ablative paint for yachts.

From the multinational, multi-billion dollar corporations that manufacture anti fouling paints and have spent hundreds of millions of dollars on R&D over many decades- "Why didn't we think of that?!!??"

[siamese]

Originally Posted by fstbttms

From the multination, multi-billion dollar corporations that manufacture anti fouling paints and have spent hundreds of millions of dollars on R&D over many decades- "Why didn't we think of that?!!??"

Wow, you sure told him. That was great. He'll know better than to ask any stupid questions around here, won't he. So clever!

[fstbttms]

Originally Posted by siamese

Wow, you sure told him. That was great. He'll know better than to ask any stupid questions around here, won't he. So clever!

Whaaaaa! The bad man offended my delicate sensibilities!

[Pete7]

Need to check with a chemist but I think the stuff you need is copper oxide rather than neat copper.

Internationals VC offshore comes with the copper oxide separately and you add it to the mix before applying. This could be just a good advertising scam to make you think the bag of copper is actually going to do something useful.

The EU are thinking of banning anyone doing their own antifouling work, roll on Brexit

By far the most useful things you can do is apply lots of paint and then use the boat regularly.

Pete

[MarkJ]

I add 1 jar of Nescafe Instant Coffee per gallon of antifouling.

It keeps the barnacles happy.

[MarkJ]

Originally Posted by grantmc

I even wondered about just adding a cup full of fine cooper filings from the machine shop to a 4 litre (gallon) can.

Isn't that, essentially, what Copper Cote is? Copper bits stuck in resin.


Try it in a section and test it for a season.

[motion30]

Originally Posted by MarkJ

Isn't that, essentially, what Copper Cote is? Copper bits stuck in resin.


Try it in a section and test it for a season.

Yes after application it needs to be sanded to expose the copper particles

[fstbttms]

Originally Posted by MarkJ

Isn't that, essentially, what Copper Cote is? Copper bits stuck in resin.

The difference is one is an epoxy and the other is a paint.

[Sea hoss]

TBTO has been banned, changes the DNA of shell fish, amongst other evils. I got some on my neck many years ago. It still weeps pus. On the lighter side, I once used fat, lime and chillies on my then current yacht. Smeared half of it on and went to lunch
Came back to find most of it gone, but then found little mounds of it up the road. That scavenging dog was sick for days. I imagine the fish would have felt the same.

[SimonV]

TBT is still readily available in SE Asia.

[fstbttms]

Originally Posted by SimonV

TBT is still readily available in SE Asia.

In the Carribean too, for the douchebags that roll that way.

[Sea hoss]

Originally Posted by SimonV

TBT is still readily available in SE Asia.

Yes, I worry about the Asian coal ships' anti foul polluting the reef with TBTO. They are moored here for weeks and are a constant stream. IMO regs have banned it. But no one is checking
It was playing havoc with the Hawkesbury oysters when it was legal here

[SimonV]

what i want is what they use on submarines.

[Jsta_Rebel]

Originally Posted by fstbttms

In the Carribean too, for the douchebags that roll that way.

Those "douchebags" would include the majority of private boat owners in the Caribbean as well as every single commercial boat in the world including those in the USA.