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Will this work? A US boat hauled out at Norsand before we left and was vertually clean. I asked the guy what antifoul he used, was nothing special but he mentioned putting in a anti algae additive. Said it stops the slime that the barnies use to adheres to. Typical we find this out after having already painted on our own concoction but did manage to get a bottle from a well known supplier so is available here and added it to our left overs with a test coat on the rudder. Interesting that this stuff mixes in with mineral based paints.

Just wandering if anyone else has heard of it? I think Ive wasted 18 bucks but its early days sitting here in 'Fungarooroo'...time will tell!?


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Not trying to be the moralist here, but putting random sh*t in your AF with no research is somewhat selfish.

And, not saying the beaurocrats get it right. :sailor:


Section 12 - Ecological Information Very toxic to aquatic organisms, may cause long-term adverse effects to the aquatic environment.


Classification of Hazardous Ingredients Ingredient Risk Phrases 2-n-octyl-isothiazoline-3-one >=5%Conc3200mg/kg LD50 Dermal, Rabbit = >19,000mg/kg LC50 Inhalation, Rat = >305mg/L/4hr 2-n-octyl-isothiazoline-3-one: LD50 Oral, Rat 279mg/kg LD50 Dermal, Rabbit = >2000mg/kg 2,2,4-trimethyl-1,3-pentanediol monoisobutyrate Tests suggest that this product is not carcinogenic or mutagenic 2-n-octyl-isothiazoline-3-one: Non teratog


Odds on its is not legal as an additive in NZ.





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This has piqued my curiosity as I'm convinced slime plays a big part in weakening biocidal based AF's.

Emailed the EPA to see where this stuff sits ecologically wise.

(discrete of course)

Don't have time for  search myself either.

The FR/ slippery type AF's can't come soon enough. ( Or critter behaviour modification)

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