Antifouling, how much?

[mastreb]

"just" three months? Holy cow, after six weeks I had 1" barnacles and 12" algae stringers. Boat was WOT limited to just 8 knots. After cleaning, back up to 17+.

It was a disaster. I started pressure washing it and that would knock off the barnacles but they took the entire gelcoat with them, exposing fiberglass. That scared me, so I went the boatyard route so as not to damage the boat. I'm exceptionally happy with the job they did and the two coat epoxy barrier. The paint they used is standing up to trailering no problem and only just barely showing signs of wear after 18 months. So I'm really happy with the work. Still walking funny from the price however.

[jbgibbs99]

When I first got the boat it had unidentifiable antifoul flaking off it. I scraped/sanded it down as best as I could and then applied two cots of antifouling primer (International 750ml PRIMOCON Antifouling Primer).

Then I applied two coats of International Cruiser Uno Antifouling - it took a 3 litre tin.

Since then I power wash the bottom when I pull it out for the winter – the few barnacles on it come straight off. I then apply one coat of the Cruiser Uno in the spring before I put it back it – this takes half of a 3 litre tin.

I’ve been doing this for 3 years now with no problems. The boat is kept on a swinging mooring in the salty sea.

I guess that sooner or later I’ll have to strip it all back and start again – but I suspect it will be later (much later).

[Divecoz]

I have a product that releases hard growth with little to almost....... no damage.. There is going to be some damage because they attach themselves best to the gel-coat because of the porosity. I am angry with myself for procrastinating...
..

"just" three months? Holy cow, after six weeks I had 1" barnacles and 12" algae stringers. Boat was WOT limited to just 8 knots. After cleaning, back up to 17+.

It was a disaster. I started pressure washing it and that would knock off the barnacles but they took the entire gelcoat with them, exposing fiberglass. That scared me, so I went the boatyard route so as not to damage the boat. I'm exceptionally happy with the job they did and the two coat epoxy barrier. The paint they used is standing up to trailering no problem and only just barely showing signs of wear after 18 months. So I'm really happy with the work. Still walking funny from the price however.

[kurz]

Does anybody has experience with coppercoat?

It is sayd that you can easily have more than 10 years just with one treatment. As it will be the first antifouling I do not have to remove an old one!

[Divecoz]

Many anti fouling paints have some sort of copper compound in them . I guess the biggest issue is. What is allowed where you live? 10 years? Thats News To Me. The Best I am finding for sale over here, even for commercial users is, about 5 Years. What product are you finding that is claiming 10 years?

Does anybody has experience with coppercoat?

It is sayd that you can easily have more than 10 years just with one treatment. As it will be the first antifouling I do not have to remove an old one!

[kurz]

Quote What product are you finding that is claiming 10 years?

Http://coppercoat.com

sounds interesting, but who knows if it works well...

[Boblee]

Well any thoughts of ever leaving a boat in a marina or mooring have been banished forever.
I actually bought a tin of antifoul some years ago and it's still sitting on a shelf, yes the first year we had a terrible job getting barnacles off but since then just been using lanolin grease rollered on before the first launch, when the boat comes home it's just a matter of hitting it with the hot pressure washer and any life that has stuck to it is gone, 15mins max.
We only spend probably 8-10weeks in total on the water (tropical) but any missed spots including the motor which is lifted whenever possible sure gives an indication of what it would be like without it.
There is always a smear left after washing and even where the bottom gets wiped in sand from time to time and a little bit of stubborn growth but nothing like that first year with at least two weeks of scrubbing and scraping.

[Divecoz]

Tell Me More. How about The Manufacturers Name? I looked on the Net and do not see anything that resembles something I could put on with a roller.

Well any thoughts of ever leaving a boat in a marina or mooring have been banished forever.
I actually bought a tin of antifoul some years ago and it's still sitting on a shelf, yes the first year we had a terrible job getting barnacles off but since then just been using lanolin grease rollered on before the first launch, when the boat comes home it's just a matter of hitting it with the hot pressure washer and any life that has stuck to it is gone, 15mins max.
We only spend probably 8-10weeks in total on the water (tropical) but any missed spots including the motor which is lifted whenever possible sure gives an indication of what it would be like without it.
There is always a smear left after washing and even where the bottom gets wiped in sand from time to time and a little bit of stubborn growth but nothing like that first year with at least two weeks of scrubbing and scraping.

[Obelix]

My bottom paint applied Mar 2011 is now basically dead (soft and hard growth, 8 weeks after cleaning). I am still debating if I repaint or get the boat out of the slip. Unfortunately in this area there is no "Mast-Up" storage, I could find, like I used to have the first 2-1/2 years on SFB.
In the Oct 2013 issue of Practical Sailor there were only 2 hard paints marked "Good" (relatively little soft growth, no hard growth) after 33 months in SW Florida water. Both paints are made by Pettit (Trinidad SR and Trinidad Pro) at $250 and $271 per gallon. PS listed as budget suggestion "Unepoxy Plus" at $145/gallon, it was rated "Fair" (significant soft growth, no hard growth). Interesting report, they show paints after 12, 24 and 33 months in SW Florida waters.

Obelix

[Boblee]

This is the stuff think I only use half a litre but need a new one so might get this one, won't use it in the fresh water as whats left on the boat will stop enough for the hot wash to clean any slime off.
https://www.whitworths.com.au/main_item ... lutePage=1

There is a special product with lanoline in it for bottom painting which gave me the idea to just use it straight, very good for protecting metal etc too, just leave in the sun to soften and then use a 4" roller to put it on, also helps the boat to slide too but if launching and retrieving regularly it can leave bare patches although growth is still inhibited.
Have no idea how it would go for long term use but for 8 weeks in clear tropical waters (worst) you get some growth that is easily blown or even scraped away.
I use it right up to the black line and it can be reapplied over existing grease and some growth and dirt, just blast all off when finished, any growth doesn't seem to be able to grip.
If we go back to the Whitsundays this year will test it out as that seems as bad as anywhere for marine growth.
If not sure try a small area grease is handy for other protective (specified ) uses

[seahouse]

A variety of lanolin products are common in Oz because it's a big sheeping area, but they are hard to come by here, the closest I got was a product called “Bag Balm” that farmers use for cows' udders. It can be used for chapped hands, too (works well). While my search wasn't exhaustive, I never did find anything on the consumer market packaged for that use here, so that might be your only source. I thought it might also be good for electrical connections for corrosion reduction, but haven't tried it for that yet.

[Boblee]

Be surprised if there isn't someone marketing it or importing it but if I get time today will check but sat here so don't hold hope of catching anyone.
I use a spray on parts like the motor which has also yielded amazing results with hardly any growth, as we use the rear entry almost exclusively on our boat the grease on a hot day wouldn't be good but the spray stops growth on the motor without seeming to rub off on us.
The spray I use was given to me as a sample and still have some left but can't seem to find it, one year I didn't use anything and the bottom half of the motor was an absolute mess but last year there was nothing although notice I might need a new anode soon.
Inox is also Lanolin based for spraying on motors and working trailer parts but this product is very similar, unlike wd 40 etc it doesn't evaporate and when warm migrates to the warmer areas. https://www.whitworths.com.au/main_item ... lutePage=1

Haven't used this one but same properties http://lanoprotect.com/products-page/liquid-lanolin/

Now all I have to do is find my can, I have looked in all the likely spots but have a habit of hiding it and the old slick 50 products so I only use them when/where really needed?

[Boblee]

Just had a bit of a quick google and found this mob, they seem to be in the U.S http://www.defender.com/category.jsp?pa ... id=2200452
Then theres these will contact them Monday http://www.maintenance.net.au/protectiv ... inewax.htm
Both the above have products for antifouling bottoms but with additives and dear, the straight lanoline grease inhibits most growth and doesn't allow it to stick so easy removed, the proper product probably works better but just the grease works great for me.

[Divecoz]

Hahahahaha Dude You are the best,..I never found that site .. I did find it for sale in The USA as a Hair Dressing hahahaha All I will say is .....
Loong Live Mod Squad hahaha

Just had a bit of a quick google and found this mob, they seem to be in the U.S http://www.defender.com/category.jsp?pa ... id=2200452
Then theres these will contact them Monday http://www.maintenance.net.au/protectiv ... inewax.htm
Both the above have products for antifouling bottoms but with additives and dear, the straight lanoline grease inhibits most growth and doesn't allow it to stick so easy removed, the proper product probably works better but just the grease works great for me.

[seahouse]

Great to know, thanks Bob!