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Old 09-22-2019, 09:44 PM   #21
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Originally Posted by sdowney717 View Post
Never seize is a loose bound oily mix with aluminum powder. I cant imagine it would stay on. Hydrocarbons are slowly metabolized by bacteria, anything greasy on the hull eventually dissipates. The less water soluble the grease, the longer it will last.

I got the idea to try it when I was racing hydroplanes. I had a high carbon steel prop that would rust in about a day. I had to sand it clean before each race day. One day after a race I grabbed a can of Never Seez from my tool box and coated the prop. At the next race I didnít have to sand the prop. After the race there was a very thin layer of Never Seez left. Other drivers asked me why I put it on my prop. I told them Iíd picked up 50 rpm by doing it.
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Old 09-22-2019, 09:51 PM   #22
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Oh good grief! This stupid idea has been around for fifty years that I know of. I first heard it in the late sixties.

The other stupid idea thatís been around forever is adding tetracycline to the paint. It does nothing.

As for grease, I put Never Seez on my bare bronze prop to see what would happen. It washed off the first time I ran the boat. Of course the hull moves a lot slower than the prop but I suspect it wouldnít last long enough to be of use.
Parks,
I use ArmorAll on my prop and it works well enough that I have no interest in expensive Propspeed.
Wouldnít dream of putting it on my hull for fear the next coat of AF would wash off in 10 minutes running time.
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Old 09-27-2019, 01:13 PM   #23
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Originally Posted by Nomad Willy View Post
Parks,
I use ArmorAll on my prop and it works well enough that I have no interest in expensive Propspeed.
Wouldnít dream of putting it on my hull for fear the next coat of AF would wash off in 10 minutes running time.
Your boat is "in the water" slipped isnt it? Did you have to haul it to apply the ArmorAll
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Old 09-27-2019, 03:40 PM   #24
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The problem with Vasoline is suppose it doesnít work and you decide to go back to normal bottom paint. How would you remove from every nook, cranny and pore in order to get adhesion for the bottom paint?
Been there, done that.

In 1990 I transported my wooden GB42 over the deserts from San Diego to Galveston and thence via 560 miles of the GIWW to Panama City, FL. In preparing for the trip which included ten days on the trailer going through arid lands, I first applied a coat of bottom paint and then smeared a coat of Vaseline over the entire underwater body of the boat to prevent the bottom drying out while on land. When I arrived in Panama City there was still a coating of Vaseline on the flat underwater transom but none elsewhere. By the time another haulout was due, there was no Vaseline anywhere.

An even stickier and non-petroleum product I have smeared on running gear underwater using a rag is lanolin which you can buy online. Great for a boat which may not immediately see a lot of use after hauling.
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Old 09-27-2019, 04:31 PM   #25
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Since my original post I have been and still am on the hardstand and seeing vessels hauled, blasted in preparation for bottom work.
I would have been one of the most skeptical people when it came to antifouling additives however as of yesterday I have witnessed 4 vessels who have used the Chilli Powder thing either washed and returned to the water or cradled without washing to be returned after anodes and other quick jobs. Apart from under keel areas there has been NO BARNACLES just the normal green muddy type slime.
On querying owners of these and a couple of other users these vessels had been in the water from between 10 and 15 months!!
3 of the antifouling products were ablative and one was hard on a yacht.
I can only report what I have seen and in a very high barnacle growth area like the Opua Marina I have to try it.
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Old 09-27-2019, 04:33 PM   #26
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I omitted to say I have hung a 500mm x 500mm plate in the water in my marina berth coated with Chilli and antifouling to monitor progress of growth
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Old 09-27-2019, 04:49 PM   #27
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For a number of years I added cayenne pepper in large amounts to my Triple XXX bottom paint on my PNW full displacement commercial troller. I bought the cayenne at a bulk food store. A few other commercial fishermen did too. I was happy with the missing growth but it did seem to thicken and harden the Triple XXX causing it to slab off after a number of applications.

I now own a semi-displacement and no longer use this type of bottom paint.
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Old 09-27-2019, 04:50 PM   #28
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Good....better document the beast out of it because the vast majority of "real testing" by third party testers have said no it doesn't work.

You have a couple choices. Keep asking for advice and get mostly negative responses, or just do what you want and laugh for years if you prove yourself right.
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Old 09-28-2019, 05:00 PM   #29
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cayenne/lanolin/mould inhibitor

Hi All, my first post if it works! Waimana is a 55 ft converted Ď45 fishing trawler,
kauri carvel planking over dble hardwood frames with 6L3B power.
Owned for 10 years just finished 5th haul out and anti foul and still experimenting,
the following being comment on my (perhaps) foolhardy experimenting so far..

first: Altex ablative sea barrier 3000 Sprayed by yard, c 30 litres
effect, after 1 year solid growth on sunlit side of wharf tie up and little on
wharf side location Tauranga, N.Z.

2nd: same paint, same quantity, roller app with 2 kg cayenne in last 2 coats
effect, no sloughing, moderate growth, muscle/ oyster encrustation after 2
yrs in Opuaís fertile waters, hard to compare for that reason.

3rd: same paint, same quantity, 3 coats rolled and some fool told me about
lanolin: sourced from aussie, had to be heated to apply 1 thick coat by
spatula... wifey will never repeat that experience due to the pong, yet she
scraped virtually the whole boat back to bare timber! The hoped for result
was once worn off, the antifoul would take over and last longer.
The effect: a full grown muscle farm within 6 months and no leaks!
fortunately the muscles were easy to scrape off, just like shearing a sheep!
Nil antifoul effect... but was 30 months before the black first coat appeared
under the 2 red top coats. No problem applying next (4th) afoul coat

4th: same make, qauntity and app, no additives.
effect: 18 mths before haul out, barnacles galore, black showing through
in upper hull area, leaking butt joint brought haul out forward.

5th: same make quantity and app, heard of anti mould additive, for house
paint that was reputed to decrease barnacles in opua, 2 bottles cost $40.
effect: donít know yet, but hell of a lot easier than pepper or lanolin and
cheaper. Will keep you posted if we still own her in 2-3 years!
Unfortunately she will probably be for sale by then, apologies for long wind,
itís a big subject! Cheers, Brian
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Old 09-28-2019, 05:14 PM   #30
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Welcome aboard Brian.
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Old 09-28-2019, 08:35 PM   #31
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Quote:
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After 40 years in the marine coatings industry I thought I had heard all the dumb ideas to make antifouling perform better...
You have been in the industry for 40 years and are just now hearing this wive's tale?
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Old 09-29-2019, 12:16 AM   #32
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You have been in the industry for 40 years and are just now hearing this wive's tale?
I checked his post for you and sure enough, that is what he posted. What now? What`s your point? If you want to tell us you are surprised, say so.
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Old 09-29-2019, 09:36 AM   #33
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If you want to tell us you are surprised, say so.
I thought that's what I just did. But maybe your reading comprehension skills aren't very good.
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Old 09-29-2019, 10:23 AM   #34
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Your boat is "in the water" slipped isnt it? Did you have to haul it to apply the ArmorAll
Oh yes I can’t imagine applying it in the water.
But almost every time I haul I pull the prop I re-coat. Take it home and clean throughly w solvents, sand paper or scotch-bright. Then I apply the AA w a squirt bottle and brush it evenly around (throw away brushes) and do that several times. Afterwards I handle the prop w mechanics rubber gloves. Places like the steering wheel of my car is no place for ArmorAll. I try not to touch the outer edges of the prop (the fast moving part and most likely place to wash off the AA) and move it around grabbing the hub. Then I flip the prop and do the other side. If weather avails itself I sunbake both sides. Lastly I tell marina people not to touch it.

I’m changing props soon so will be doing this in a week or so. The weather’s already quite cool here so won’t be much of a sunbake.
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Old 10-03-2019, 11:13 PM   #35
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OK so I have "bitten the bullet" and have launched today with Chilli powder added to my ablative antifouling paint, I did not added the full amount recommended of 2kg per 10 liters but opted for 1kg as it seemed a little excessive as the viscosity increased to a stage where the product was difficult to handle in my opinion. It could not be sprayed as it clogged the nozzle and with rolling left a rather stippled finish.
I have also placed a 500mm x 500mm test panel on my marina split into 3 sections, 1 x antifouling only, 1 x with chilli powder added and 1 x antifouling with a super hot chilli paste, reason for paste tril is that if it works will emulsify into paint and allow spraying.
Nothing ventured nothing gained. We aare just entering the barnacle spat season here so will be interesting to monitor
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Old 10-04-2019, 12:45 AM   #36
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I watched shows of wrecks in salt water where old shoes didnít have any marine growth on them. So maybe adding tannic acid to the paint will work.
You may have something there. After a year in the Bahamas our boat had a liberal coating of barnacles. Week and a half in the tannic acid rich Dismal Swamp and the bottom looked like new.

According to Robert Peek (lock master and amateur historian) it was an old practice to bring wooden vessels as far into the swamp as possible to clean marine growth from the bottom.
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Old 10-04-2019, 12:53 AM   #37
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Hi Phil23, looking forward to the results of your efforts to compare, with and without the controversial additive.
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Old 10-04-2019, 06:46 AM   #38
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Do barnacles sneeze?
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Old 10-06-2019, 09:39 AM   #39
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Sometimes an ounce of prevention is worth a pound of cure: contact the local invertebrate department at the local university and ask about the calendar of the settling phase of the barnacle species of concern. Being out of saltwater, either on the hard or in freshwater is a good solution. Thatís what I do.

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Old 10-06-2019, 02:19 PM   #40
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If you want to add ingredients to your bottom paint, start with the substances the EPA has banned. Most, if not all, are available from a chemical supply. Years ago, we didn't have the issue of bottom growth that we do now. Even in the tropics.
I don't know what the navy uses but pic is destroyer USS Cole, 4 years in tropical water. No growth/barnacles.







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