Frank 157 Posted August 24, 2019 Share Posted August 24, 2019 Everything seems to be ablative these days, I need some hard black AF for the bulb and lower part of the keel. Does anyone know where I might get some ? chrs Quote Link to post Share on other sites
Clipper 343 Posted August 24, 2019 Share Posted August 24, 2019 Can you buy Micron Ultra? Quote Link to post Share on other sites
S.M.U. 15 Posted August 24, 2019 Share Posted August 24, 2019 Try Petit Vivid from Altex. Also has the advantage that it comes in a 500ml can and heaps of different colours. Quote Link to post Share on other sites
Tazzy Devil 18 Posted August 24, 2019 Share Posted August 24, 2019 I have vivid on my boat, it’s not a true hard antifoul but it’s excellent stuff. Hard enough to stand up to scrubbing but soft enough that it falls off when spent. Quote Link to post Share on other sites
Tazzy Devil 18 Posted August 25, 2019 Share Posted August 25, 2019 Up the river in Whangarei, I put on 5 litres and reckon 12 months. That’s as good as anything up here. In water cleaned 10-12 times a year. Quote Link to post Share on other sites
Frank 157 Posted August 25, 2019 Author Share Posted August 25, 2019 Can you buy Micron Ultra? Looking on the website that seems to be ablative. Quote Link to post Share on other sites
Frank 157 Posted August 25, 2019 Author Share Posted August 25, 2019 I have vivid on my boat, it’s not a true hard antifoul but it’s excellent stuff. Hard enough to stand up to scrubbing but soft enough that it falls off when spent. That looks to be an Aluminium- safe product,ie no copper, the bulb is the worst part of the boat for barnacles, I'm not sure it would work out for my situation.You have given me a thought though, perhaps copper coat might do the trick. Quote Link to post Share on other sites
Frank 157 Posted August 25, 2019 Author Share Posted August 25, 2019 Looks like this stuff might be the closest. https://altexcoatings.co.nz/frontend/products.cfm?page=product&productid=3 Quote Link to post Share on other sites
S.M.U. 15 Posted August 25, 2019 Share Posted August 25, 2019 Stopped production a couple of years ago. Another alternative is International Ultra 2, but I'm not sure it comes in a 1 litre or less can. Quote Link to post Share on other sites
splat 55 Posted August 25, 2019 Share Posted August 25, 2019 I have a 930 like SMU and currently have # 10. I'm moving to vivid as it is the next best thing. It is great as it availble in smaller volumes than many of the other brands. Reality is that due to Ministry of Environment concerns around Heavy metals the AF products are arguably not as effective as they once were. Vivid is a so called semi ablative...it is quite soft but it works. I have had a trial on our rudder blade in Marlborough and am impressed with its performance thus far. Quote Link to post Share on other sites
Fish 0 Posted August 25, 2019 Share Posted August 25, 2019 That looks to be an Aluminium- safe product,ie no copper, the bulb is the worst part of the boat for barnacles, I'm not sure it would work out for my situation.You have given me a thought though, perhaps copper coat might do the trick. Copper coat's main weakness is probably against barnacles, so if you are looking to apply it specifically to deal with barnacles, you may be disappointing. This is based on my own experience with CC. In saying that, the barnacles seem particularly verilent this / last season. I haven't heard of any AF that is effective for them. Doesn't BoI have major issues with barnacle spawn? Also, the surface prep is significant to apply copper coat. It is a 10 yr plus product, so you have to get the substrate tip top perfect. If you are planning on doing the whole hull its one thing, but just doing specific patches could be a pain. It does need a different maintenance regime to regular AF. Basically it gets a light film of silt / growth on it quickly, and stays like that for a long time (i.e. doesn't really get much heavier layer over many months). Not a problem if your cruising, but if you want a perfectly clean bum for racing, you need to wipe it down regularly. Complete hard product though, so you can scrub it with anything you want, as often as you want. Quote Link to post Share on other sites
Kick Ass 47 Posted August 26, 2019 Share Posted August 26, 2019 We used ultra 2 on Kick which is supposedly a hard anti foul? Lasted 6 months and had to apply another 2 coats and we are now another 6 months down the track and she needs it again.... very dissapointed! Best product i have used was vivid petit as i would get 12-14months. Boat comes out in October for a full bottom job so will be trying something different again Quote Link to post Share on other sites
Fish 0 Posted August 26, 2019 Share Posted August 26, 2019 Pretty much my experience too with DIY copper epoxy. I thought I could keep up the clean/ burnishing, but ahh, not so much. Migrated to micron ultra2 We don't bother with the burnishing. I haven't noticed any difference with it. Use a couple of plastic plastering trowels to clean the hull down, and a hose off. Steel putty knife for the stickier barnacles. We do often give it a once over with a scotchbrite pad, that is mainly to get the last of the really sticky biofilm off. That might be anough to burnish it, but we certainly don't try and burnish it. Not sure if its to do with the CC, but there is a type of particularly sticky biofilm that grows on it. Waterblasting was slow and noise, hence the plastic scrappers. Once dried out on piles, its a quick job to clean the hull, maybe an hr or 2. Then have a cup of tea while the tide comes back in. Quote Link to post Share on other sites
chariot 242 Posted August 26, 2019 Share Posted August 26, 2019 We used ultra 2 on Kick which is supposedly a hard anti foul? Lasted 6 months and had to apply another 2 coats and we are now another 6 months down the track and she needs it again.... very dissapointed! Best product i have used was vivid petit as i would get 12-14months. Boat comes out in October for a full bottom job so will be trying something different again I used Ultra 2 last year. Have had on for 12 months and only waterblasted once. Not racing though. That was at Pine Harbour for 6 months then Whitianga for 6 months. Quote Link to post Share on other sites
Kick Ass 47 Posted August 26, 2019 Share Posted August 26, 2019 Did you blast the Ultra2 dry docked or scrub in water? And, how often? Never blasted, just soft pad in the water. It would come off in clouds! Good thing is there isnt much left so easy for the bottom job we are about to do! Quote Link to post Share on other sites
Black Panther 1,566 Posted August 26, 2019 Share Posted August 26, 2019 Ive had no barnacles so far with cc Quote Link to post Share on other sites
Fish 0 Posted August 26, 2019 Share Posted August 26, 2019 Ive had no barnacles so far with ccReally, not even last summer?Perhaps they don't like your taste in music or something. How often are you cleaning now? Quote Link to post Share on other sites
Fish 0 Posted August 27, 2019 Share Posted August 27, 2019 How did you prep the CC for a new af over the top? Just sand and interprotect? Quote Link to post Share on other sites
Black Panther 1,566 Posted August 27, 2019 Share Posted August 27, 2019 About 8 months and its due now, but thought i would wait for warmer water. The two or three barnacles ive had you could pop off with your fingernails. Quote Link to post Share on other sites
Frank 157 Posted August 27, 2019 Author Share Posted August 27, 2019 I will try the Vivid Petit on the bulb, something bright , maybe the barnacles wont like the colour. Quote Link to post Share on other sites
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