G'day to all

I have been looking at upgrading the boat.
There's one 6m ally plate boat I've found that will suit me to a T with one little problem,it's been moored for a while by the looks of the hull. It's got a few little barnacles over some sort of black stuff (which i have no clue as to what it is) that covers the bottom of the hull (under the water line).

Does anyone here know how to clean aluminium hulls of this sort of scum or knows a company that i can get a quote from before I start talking money with the owner.

big thanks

Posts: 184

Date Joined: 09/08/08


Thu, 2008-10-23 02:50

The black stuff is probably antifoul.  I wouldnt go for it unless it was really cheap.

Deegs's picture

Posts: 113

Date Joined: 09/11/07

definatly be antifoul

Thu, 2008-10-23 08:35

Designed for boats that stay in the water. works by the barnicals sticking to it and fallin of as you travel around. Normally fitted in about 5 to 6 layers for longeverty. If the boat is not going to be left at some kind of marina or mooring then I would have it removed as it does create extra drag in the water. Places to have this done would be most local ship yards. most shipyards or marinas have some advertising on antifouling.

Wishin I was fishin and only 500k's to the water..

jersey's picture

Posts: 393

Date Joined: 12/06/08

Anti fouled

Thu, 2008-10-23 08:39

Check with Jerry at the Hillarys Boat lifters,they work with it all the time.

From what you discribe the hull like,whats the moter,in-board,out-board,and has it been looked after,or is it a major cost waithing to bite you.good luck jersey

Stev0's picture

Posts: 113

Date Joined: 19/12/07

You can easily remove anti

Thu, 2008-10-23 17:01

You can easily remove anti foul yourself, theres special toxic (got a rating of 8 i think) stuff that you slap on and remove it layer by layer, could probably get it done in half a day or so, just wear gloves cause it burns your skin good. Anti fowl wont do anything to the hull and assuming they are not using it to cover up any dings you should be all good, I think it also has some chemicals in it to try deter barnacles and the likes from growing on your hull but its heavily monitored and now days they don't let it be that toxic due to environmental reasons.

Thinking about it with an Ali hull you might be able to pressure hose it off, the reason why we use that toxic removal is that when you re-antifowl your boat you take a few layers off and then paint them back on again.

Posts: 56

Date Joined: 16/01/08


Thu, 2008-10-23 20:24

Thanks for the info guys sounds like alot work,With no guarantees on the hull plus the outboard must of been sitting in the drink aswell because the prop was a bit corroded and also had water line stains on the leg.

As you said jersey it could end up biting me on the ass.
I guess I'll just keep looking.

Boat Hunting, One of them things you hate and love at the same time!!!!

Thanks again

gpc123's picture

Posts: 265

Date Joined: 12/02/07


Thu, 2008-10-23 20:32

Mate just wash it down with wife bashers... One for me one for the boat.LaughingLaughing (better than coke)




Single dad and proud of him

Posts: 56

Date Joined: 16/01/08


Thu, 2008-10-23 20:37


Adam Gallash's picture

Posts: 15605

Date Joined: 29/11/05

What sorta boat

Fri, 2008-10-24 08:48

What sorta boat you got in mind greeny?


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