Advise on rubber paint

[felthamscruiser]

hi as you know i have had a few leaks which are getting smaller and small the more work i put in i have some of this water based pond paint (rubber based) was thinking of painting the under water line in it as have heard that it should stop my leaks or the rest of them that is ???
this is the link on ebay of the paint ....http://cgi.ebay.co.uk/Waterproof-pon...QQcmdZViewItem

its friendly to marine life and allows shrinking and movement... think it will work what do you think and have any of you used this rubber paint

[kc8pql]

...its friendly to marine life and allows shrinking and movement... think it will work what do you think and have any of you used this rubber paint

You don't want bottom paint to be friendly to marine life unless you want your boat covered with barnicals and eaten by worms. I've used pond paint to stop small leaks in concrete garden ponds, but I wouldn't use it on a boat. In the long run you'll be much better off if you repair the leaks properly rather than just trying to plug them with rubber paint.

[felthamscruiser]

was going to use it as a under coat more than just a coat was going to anti foul over the top i know what you mean but in my area there is no way to get my sort of boat out the water we have a half hour trip to get to anywere to sit against posts to scrap off the bottom and paint

[The Bigfella]

Plan on making that trip once a year.

Before you try a new technique, make up an experiment and see how it works - otherwise you risk damaging your boat. Bear in mind that your experiment needs to replicate the conditions of your boat, which almost certainly include timber that is oil-impregnated from linseed oil based caulking compounds, and so on. People keep trying things like Sikaflex - but guess what - these super compounds don't stick to oil-impregnated timber.

[kc8pql]

was going to use it as a under coat more than just a coat was going to anti foul over the top

Yes, but will the anti-fouling stick to the rubber paint?

[The Bigfella]

and will the rubber paint cause the same sort of problems that fibreglassing a hull causes?

[kc8pql]

and can you get it all off again if/when it fails?

[Thorne]

In other words, if this sort of paint and process worked, it would be in use world-wide. Since it isn't, we can safely assume it doesn't work...

[felthamscruiser]

true but was boatlife caulk recomended when it came out also there is a post on here about a guy who has used a neopolone roofing stuff which is what the rubber paint made of and said it is the second season since he used it as a seam compound and it works we never know if any thing works till we try it ..it does sand down or off if required also i have mahogany planking so should not be oily wood

[felthamscruiser]

this is the link i found of interest http://www.woodenboat.com/forum/showthread.php?t=434

[The Bigfella]

i have mahogany planking so should not be oily wood

Its not an issue with the species of wood - its an issue of how its spent the last ??? years, which, I'm willing to bet have seen it in contact with an oil-based seam compound - which means you have oily wood now.

Someone had caulked parts of Grantala with Sikaflex. It came out like a boogie out of a kids nose (well, what was left and hadn't fallen out, that is). It simply didn't stick.

[felthamscruiser]

oh see what you mean now good point i have redlead putty and coppper sheath at bow and looks like tar or pitch were the keel joins