|
|
Post by armchairadmiral on May 2, 2022 18:12:06 GMT 12
For the brains trust.. seems the watered down antifouling paints to day aren't a patch on only a few years ago. Understand why. BUT...what's holding up the best of the new ones.We're using hard black so that's what will go back on. Opinions from experience would be appreciated.
|
|
|
|
Post by dutyfree on May 2, 2022 18:19:15 GMT 12
All the brains held in trust have been subject to a wealth tax and so are hiding  I would love to know the answer to your question too, but being a cough (launch owner) have some different challenges. I can get up to a good speed and blow the stuff off, but having said that I still need to get the boat out of the marina every two weeks to achieve that outcome. Barnacles are sticking to my 9 month old antifoul!! |
|
|
|
Post by GO30 on May 2, 2022 19:19:16 GMT 12
I'm having issues with mine as well. 1 year old and fouls up wickedly inside 3-4 weeks, inc barnacles now.
But I suspect it's due to the changes in Westhaven after the closed the western gap. All the growth around the berth has just gone, totally gone and replaced with fast growing shellfish. The water since the gap closure is dirtier and deader for sure.
But then we do berth in Panukus biggest active marine pest farm. How we are supposed to keep boats clean when tied to that I do wonder, something Panuku obviously never has and I doubt never will.
|
|
|
|
Post by fish on May 2, 2022 20:51:10 GMT 12
For the brains trust.. seems the watered down antifouling paints to day aren't a patch on only a few years ago. Understand why. BUT...what's holding up the best of the new ones.We're using hard black so that's what will go back on. Opinions from experience would be appreciated. As far as I know, there isn't any new tech that actually works. I did a fairly big study of all of my options last year, and got very excited about a posh new AF paint (very expensive) Was even phoning the technical support and the rep. The rep told my not to bother, and just go with their cheapest. I think that was Altex #5, or the commercial equivalent which was Seabreeze 3000 or something. In terms of paint on stuff, I think the EPA rules mean they have gone as far as they can go with things to control ablativeness and leach rates and stuff. The new tech options are the super smooth telfon / silicon vinyl wrap types, or copper coat (if you all copper coat new tech). The vinyl wraps have the two short comings in that they need to be used at least fortnightly, and need to go zoomy fast to get enough shear stress to knock everything off. I think minimum 9 knts, but in effect you are talking planning launch only. I use a vinyl wrap on my prop shaft, and it works very well. Even keeps the barnacles off. But so far my success rate at sticking the stuff to the shaft is 50:50 Currently I think the only way forward is to get a hard AF, and accept you will need to clean it regularly. For this reason I went with copper coat again, and invested in some Scuba gear. That said, the CC isn't doing so well this summer. Major barnacle issue. I don't think anything deals with Barnacles. I've got an idea that tin is the only thing that will, and that was banned 2 or 3 ban iterations ago. The only tech development I reckon will work would be a vinyl wrap thing with a biocide impregnated in it. Like a good proper old fashioned AF, with stuff that is actually toxic in it, but on a wrap so it doesn't leach into the environment. Haven't seen one yet, can only wait. |
|
|
|
Post by fish on May 2, 2022 20:57:19 GMT 12
I think this is the stuff I got really excited about. Note $960 for 4 l.... 3 active ingredients (or modes of action) Would have cost a frigging fortune doing the boat in this stuff. But the rep said don't bother, go for the cheap stuff and just plan to recoat regularly. We are in the Weiti, so known high fouling. Might have had something to do with brackish water also. altex-paint-shop.myshopify.com/products/sea-zone-60-antifoul?variant=41211706704033 |
|
|
|
Post by Cantab on May 2, 2022 21:56:41 GMT 12
|
|
|
|
Post by ComfortZone on May 3, 2022 9:00:06 GMT 12
I have had a good run with Hempel's Olympic with just slime forming. Repainted May last year, scuba wipes just before Xmas and Easter.
Have noticed a bit more barnacle spat than there used to be with just Gulf/Barrier use. The paint on the starboard side waterline near the bow is quite worn in spite of having 4 coats, this is the side that sees the most water flow.
I think biggest plus in my situation is being in the Sandspit harbour with quite strong tidal flows and lots of freshwater coming down the 2 rivers in storm events
|
|
|
|
Post by fish on May 3, 2022 11:14:39 GMT 12
I think biggest plus in my situation is being in the Sandspit harbour with quite strong tidal flows and lots of freshwater coming down the 2 rivers in storm events According to the leftie tree-hugging vegetarians, shouldn't that strong tidal flow have caused the entire Sandspit harbour and surrounding estuary to have silted up and turned into festering mud flats by now? PS, my apologies to vegans, the LGBTIXYZ community, and of course the woke, for leaving you out of the above insult. |
|
|
|
Post by fish on May 3, 2022 11:21:11 GMT 12
Certainly the advice I received, and the conclusion I came to, was to get the cheapest AF and expect to need to clean it regularly. I got an entire scuba set for less than 4 l of that Altex Seazone 60... And due to the need for cleaning, to go for a hard AF. We went for Copper Coat, as mentioned above. It is not performing that great, especially due to barnacles, but the cost and hassle factor over the expected 8 yr life of the product is significant. Haulout and hardstand costs are only going up, so I don't need to worry about the 18month or annual haul out now. Can clean the hull with my scuba, and have piles to dry out on for other maintenance such as our kiwiprop or anode. I'm effectively replacing an annual haul out with regular scuba dives, but at least I can do a scuba dive when I want, don't need to book anything, and can do it in December (unlike a haul out with them all being fully booked). And yes, the regulatory and approvals process to introduce a new product into the NZ market is significant, while the size of the market, in $$ terms is very small. It is possibly something that needs govt intervention, in that commercial returns are not leading to new technology being licensed here. The govt intervention would be to reduce the spread of marine pests, whilst avoiding bio-accumulating toxins. Reckon Labour will do it? Mwahahaa |
|
|
|
Post by GO30 on May 6, 2022 17:08:08 GMT 12
Vivid has failed to impress me. Next time I'm going for the nuclear option. But a mate builds his own anti-foul for his 38ft planing launch and only repaints his bum every 5 or 6 years. The one downside is swimming by the boat for the first year is probably not that wise. Don't know what's in it but I am going to suss. One of the best anti-fouls I ever used was 'borrowed' from the RNZN. Made in Korea based on veggie oil I was told. That worked real well but when the contract came up to get more they went another direction that panned out to be decidedly average, the dumbarses. We should have borrowed a few more tins |
|
|
|
Post by Fogg on May 6, 2022 19:55:47 GMT 12
Vivid has failed to impress me. Next time I'm going for the nuclear option. Vivid. Agree. Although my switch to vivid white seems to have coincided with a change in antifoul performance across the market - hence this discussion thread - so I’m not sure much worse vivid is than other options anymore. Nuclear. Do you mean the stuff they use on nuclear subs? Apparently it’s quite good. |
|
Deleted
Deleted Member
Posts: 0
|
Post by Deleted on May 6, 2022 20:12:07 GMT 12
Vivid has failed to impress me. Next time I'm going for the nuclear option. But a mate builds his own anti-foul for his 38ft planing launch and only repaints his bum every 5 or 6 years. The one downside is swimming by the boat for the first year is probably not that wise. Don't know what's in it but I am going to suss. One of the best anti-fouls I ever used was 'borrowed' from the RNZN. Made in Korea based on veggie oil I was told. That worked real well but when the contract came up to get more they went another direction that panned out to be decidedly average, the dumbarses. We should have borrowed a few more tins  was it Green??  Had some from same place and yes worked well,especially for the price it. |
|
|
|
Post by sloopjohnb on May 6, 2022 20:41:58 GMT 12
Vivid has failed to impress me. Next time I'm going for the nuclear option. But a mate builds his own anti-foul for his 38ft planing launch and only repaints his bum every 5 or 6 years. The one downside is swimming by the boat for the first year is probably not that wise. Don't know what's in it but I am going to suss. One of the best anti-fouls I ever used was 'borrowed' from the RNZN. Made in Korea based on veggie oil I was told. That worked real well but when the contract came up to get more they went another direction that panned out to be decidedly average, the dumbarses. We should have borrowed a few more tins Did you sail past here?  exploringauckland.com/bioluminescence-auckland/ |
|
|
|
Post by fish on May 7, 2022 10:38:18 GMT 12
I wonder what the black market is like for the proper ship's AF. The stuff that actually works, and isn't allowed on recreational boats.
|
|
|
|
Post by em on May 7, 2022 11:47:54 GMT 12
Vivid has failed to impress me. Next time I'm going for the nuclear option. But a mate builds his own anti-foul for his 38ft planing launch and only repaints his bum every 5 or 6 years. The one downside is swimming by the boat for the first year is probably not that wise. Don't know what's in it but I am going to suss. One of the best anti-fouls I ever used was 'borrowed' from the RNZN. Made in Korea based on veggie oil I was told. That worked real well but when the contract came up to get more they went another direction that panned out to be decidedly average, the dumbarses. We should have borrowed a few more tins I know a professional painter who puts glyphosate in his antifoul ….I don’t think much of the idea , I wouldnt swim in glyphosate or eat fish, scallops etc that have been exposed to it ….actually where are the fish and scallops ? |
|
Had some from same place and yes worked well,especially for the price it.
