Anti fowling how can you tell when to replace

[flylhp]

Hi
Can any one advice how can you tell if you need to completely remove anti fowling or just rea coat my hull has two coats in good condition but hard.

flylhp

 

[Talbot]

Normally only need to remove the old stuff when it has started to flake off, leaving large scale type holes in the a/f. you can normally get by for a couple of years with just a sand to ease the edges and roughen the paint where it had flaked off, but eventually it gets easier to just remove the lot and start again.

The other reason for removing it is when it has got so thick that the weight of the a/f is adding an inch to your waterline depth /forums/images/graemlins/smile.gif

 

[Joe_Cole]

I stripped mine off 5 years ago and just slap on a new coat before launching each year. I'm not expecting to need to strip it off again for a few years. When it needs doing it'll be obvious! (Cracking, crazing and flaking).

I don't imagine that our racing friends will agree with me though. /forums/images/graemlins/ooo.gif /forums/images/graemlins/ooo.gif /forums/images/graemlins/ooo.gif /forums/images/graemlins/ooo.gif

 

[Guest]

Post deleted by danfoley

 

[FullCircle]

Ho ho ho!
Actually, there will be a need for anti fox paint as their numbers will swell immeasurably, and they will be kipping in your cockpit before you know it.
Therefore, I am forming the Reynard NoVix boat paint company. To let you in on the secret, it will be to decant surplus stocks of antifouling into new tins, round the back of the boatshed. 50 quid a tin, lubberly jubberly. Should be at least as effective as those daft plastic owls that I see!

 

[Becky]

Sorry, a mistake noticed here; the plastic owls are to deter the seagulls, which they don't. But, quite right about anti-fox paint. But there will be a spin-off in that there will be a HUGE increase in rabbits, necessitating one famous forum contributor to no longer have to paint his head as they (rabbits) will be in over-abundant supply. So you must also make anti-bunny fowling too. And don't forget the chickens, they will not be raided in such numbers because of the lack of foxes, so you will have to produce anti-chicken fowling as well.











What makes you think I am bored with cooking and washing up? /forums/images/graemlins/tongue.gif /forums/images/graemlins/tongue.gif

 

[sailorman]

[ QUOTE ]
Ho ho ho!
Actually, there will be a need for anti fox paint as their numbers will swell immeasurably, and they will be kipping in your cockpit before you know it.
Therefore, I am forming the Reynard NoVix boat paint company. To let you in on the secret, it will be to decant surplus stocks of antifouling into new tins, round the back of the boatshed. 50 quid a tin, lubberly jubberly. Should be at least as effective as those daft plastic owls that I see!

[/ QUOTE ]

wot about the Urban fox /forums/images/graemlins/shocked.gif or hasnt Mr T.Banks MP heard of these ferral types in his midst /forums/images/graemlins/shocked.gif /forums/images/graemlins/shocked.gif /forums/images/graemlins/shocked.gif.

 

[charles_reed]

When the guano

starts to stick

 

[William_H]

Seriously returning to A/F removal. It is a terrible job to be deferred as long as possible. You will know, it will be so obvious you just won't be able tyo ignor the problem any more for the previously stated reasons. If you have to ask you don't need to. happy new year will

 

[charles_reed]

Removing antifouling

is, I agree, a Promethean task.

I always rub back to the original Copperclad before applying new antifouling to avoid a heavy build-up.

In response to the original post:-

1. It depends on the antifouling - if eroding you'll know soon enough because it will disappear. For that reason it's a good idea to use different colours for each application. Most people replace it every year but my experience is that the normal 2 coats will last about 4000 M (which is about 5 years for the average yottie). You do have to have a regular clean-down to clear off the build-up of slime and barnacles.
With hard racing, you'll find that it's just not doing the job and one gets increasingly frequent build-up, usually after about 18 months.

From this most will realise that, IMHO, that for most yotties their annual antifouling is a bit of a waste of energy and money, however taking the boat out of the water for more than about 2 weeks means that the antifouling dries out and starts losing adhesion. If you don't take the boat out of the water for a dry-out you'll get increasing moisture ingress and possible wicking and osmotic blistering.

A classic Catch-22 situation. /forums/images/graemlins/mad.gif

 

[Stevie_T]

Re: Removing antifouling

Never had to do it myself but somebody told me they did it like this:
Had a coat of yellow antifoul, then a single coat of blue.
When the yellow started to show through it was ready for doing again. As it was only a thin coat they pressure wash off the remaining blue and re-apply a new blue coat.
Needs doing more regularly but if you can lean your boat against a wall or scrubing pile, no problem.
Or so I am told