Anti Foul

[Bigplumbs]

I know this will make Anna squirm having took ages removing the Antifoul from her Fletcher. I am going to leave my 19 FT GTO on a swinging mooring from May for 6 ish months. The boat has already been antifouled in the past so I am not messing it up as such. The stern drive looks like it has never been antifouled

Firstly I was wondering what others who antifoul use for the hull and also if I also need to antifoul the stern drive and if so do I use a different paint

Regards

Dennis

[MartynG]

In general you should not use hull antifoul on the sterndrive . Tape the hull around the transom shield so it leaves bare GRP about 25mm wide. This is required because the hull antifoul contains copper which will cause corrosion of the aluminium sterndrive .
If you want to antifoul the leg use an antifoul that is sold for this particular purpose - usually sold as a spray can. Obviously the anodes should not be painted.

The type of hull antifoul perhaps relates to the area where you do your boating. However some antifouls will not tolerate being out of the water so look for a product that will not mind the six months ashore.

Edit
the following website might be useful
https://www.premiermarinepaints.co.uk/#

[shibbs]

Dennis,
As already said by Martyn, the leg will use different antifoul and will definitely require doing - you'd be amazed how much will grow over a few weeks with nothing on it!
I use International Trilux on mine, has been ok but still requires a lift and scrub mid season just for the bits that the paint doesn't fully get to. I have used various different paints on the hull. Last year i used International Interspeed Ultra and i must say, i was particularly disappointed. I had to pull it and re-do half way through as it was fouling so badly! I think the one before that was Cruiser Uno.
I think it depends alot on the area that the boat is so may well be worth speaking to local boat owners and see what they use / recommend? I know i will be trying something different this year as there is nothing more annoying than getting to the boat, seeing growth and then knowing its slowing you down and costing you more!! (then having to get in and clean it.)
I will definitely be asking some local advice within the next few months.

[Bigplumbs]

http://www.promarinetrade.com/bw_client ... ONTHLY.pdf

The article above is a study conducted by Motorboats monthly and compares various antifouls in various areas. Interesting reading

I now know what I need to buy for the Deben

Dennis

[Centaur]

I saw another similar antifoul review last year (PBO perhaps?). Seajet's Shogun 033 did well in that test too but was bettered by their Emperor 034 antifoul. After a recommendation by a forumite (DPB101) I went with the Emperor 034. It is slightly more expensive but has the advantage that, as it is not copper based, it can be used on aluminium too and so is suitable for both the hull and outdrives.

It is an eroding type and so wouldn't be suitable if your swinging mooring dries out - you would need a hard, scrubbable antifoul for that. However, it is supposed to be good for 40kts and so should be suitable for most sports boats. Indeed, it has survived a season on the propellers too, so it must be quite tenacious!

It certainly seemed to keep leafy growth and barnacles off but did still suffer from a degree of slime, although I've never used anything in Poole Harbour that has kept slime off, even in years gone by when antifouls contained more toxic ingredients. However, as the article points out, eroding antifouls work best on boats that are used frequently, not ones like mine that sit in a marina most of the time. If your swinging mooring is in an area of strong tides, though, it may help the erosion process and minimise slime build-up.

My boat is due to be hauled out next week, so it will be interesting to see what ten months of growth look like... I will let you know!