Hi all

Slipping the boat on Friday to give her a wash and a paint after 17 months afloat since the last time it was done

The last time i did it i only rolled on one full coat and a second around the waterline and leading/trailing edges as she has a lovely smooth bottom with no build up of antifoul unlike my previous Spacesailor that had large patches of build up

The locals down here seem to think that with the cold water temps down here one full coat is enough

Also had a bit of a google and it appears that one of the yards in Hobart agrees as well hobartslipyards.com.au/work-faqs/

Just wondering how many coats others on the forum apply

Regards Don

It depends on how thick you can lay it on (brush or roller) and how much time you have on the slip.

It is all about microns Don. The higher the micron thickness, the better the protection. Consult the back of the tin it comes in or the web site of the paint manufacturer.

I would be happier with two coats than one.

One full coat and double up on the edges and waterline. Good thick roller, one of the cheap ones and toss it after.

One coat. Load up the roller and get it on thick and quick. Stir very regularly with a power stirrer. With all the rain this year in Sydney I'm getting 2years

i used to buy 4ltrs cans and struggle for two good coats . gone to the 5ltrs cans and does it better

I use Altex No 5 and under their recommendations its 3 coats if using a roller. On a Top Hat we get 2 coats per tin. Not enough really and only last just over 12 months in the river.

As I was cruising when I last did mine I put 4 coats on [2 tins] and its still good in a very foul area after 18 months.
Reckon I'll get at least another 12 months.

Actually put over 8 coats on the prop and where the pressure waves occur on each blade is the only place its worn off.

I re-did my 35ft S&S this year. I ordered 15l and just rolled it all on. It was 2 full coats and then another around the water line.

Jedibrad said..
8 coats... how long are you on the slip for??

Only on the prop, one at the start and finish of each of the 4 coats on the bottom.

Will be trying hard anti-fouling on the prop next time.

I was on the hard stand for 4 days as that was the cheap bit of the exercise.

2 coats + 1 coat around waterline and leading. + 3 dives and scrubs last me about 5 years. I noticed not much growth in Tassie when I last visited. Fresh water Dead marinas are seem good for just a bit of slime.

Hi all

Slipped her today and all there was was a covering of slime and a few small hard shells that came off with the pressure cleaner

Gave her a wash and a light sand and rolled one coat on after my mate had brushed the edges so essentially she has one full coat and another around the edges using around 4 litres

Here are a couple of before and afters

Regards Don

Being moored near a freshwater source seems to have a very real effect on longevity.

I have a friend who berths his yacht in Akuna Bay in Sydney. The bay is regularly flushed by a freshwater watercourse.

After two years his boat has barely any slime.

I find that an extra coat on the rudder(s) is also very beneficial.

ChopesBro said..
I think movement is a huge key....and a fantastic excuse to take the boat out.

"Sorry , really cant make that commitment on my free time . ...i have to take my boat sailing or the antifoul will be ruined "

ha ha