F43 Antifoul Area m2

[John100156]

I need to AF my F43 (2001) for the first time, can anyone tell me the area in m2 so I can calculate coverage? I can estimate it from the dims in the owners manual, but I wondered if anyone has already done this, or physically measured it. Any help would be appreciated.

John

 

[Rum_Pirate]

I use a gallon (per coat) of Seahawk to antifoul my Mako 22.

22'8" long x 8'0" beam plus say 6" up each side. Allow 200sf coverage /US gallon.

BUT SEAHAWK says
Theoretical Coverage: 331 Sq.Ft./USA Gal. @ 3.0 mils DFT

Store: $315.00 / EACH but 10% off for cash.

ISLANDS 44 Plus (hard) this is a harder co-polymer paint specially produced for powerboats and megayachts which move quicker through the water and need a paint which ablates at a slower rate, maximizing usage. NOT FOR SALE IN THE USA.

can add : TIN BOOSTER 8 OZ. SEAHAWK

 

[PRH]

From memory we used three 2.5ltr tins of EU45 and managed 2 coats the second one was a bit sparce though, just the important bits.....

 

[John100156]

Thanks guys but it's not the coverage of each type of AF that I wanted but rather the area that needs to be covered on an F43, in square metres. I will be applying coppercoat on this occasion and the quote will be based on area.

 

[John100156]

Oh well just to keep the thread alive, if anyone can help it would be appreciated, otherwise I am going for a lift and scrub first week in August, if I do not get a response before then I will take some measurements and re-post just in case it's of any use to others.

 

[Rum_Pirate]

I took length (+ the vertical at the stern) x the beam (+the two vertical bits on each side.

Then divided that (using 75% of the theoretical coverage area per gallon) by coverage area and that gave me the amount in gallons needed, with a little left 5-10% over.

It depends entirely on how thick you apply it.

I apply blue (or red) as an undercoat then black as a top coat.
That allows me to see where it is wearing thin.

Dont forget to jack/lift the vessel up to paint the bits resting on the trailer.

 

[Bojangles]

2 x 2.5 litres was enough for my F43, 1 coat only

Cheers

David

 

[John100156]

Thanks all.

I roughly calculated the area as follows:

Length of waterline: 10.1m
Depth water line to keel: 0.7m
Beam: 4.16m

Ignoring side curvature, chines and tapering at the bow:

Half the beam is: 2.08m

So the height of the side panel would be the hypotenuse of half the beam x the depth below the waterline, roughly:

H = SQRT (0.7^2 + 2.08^2) = 2.19m

So:

2.19m x 10.1m = 22.16m2 per side.

Port and Stb area then say 44.32m2

Transom at stern is a rectangle say beam x depth below waterline at: 4.16m x 0.7m = 2.91m2

So say 44.32 + 2.91 = 47.23m2 or a coverage of say 50m2 per coat.

Can anyone tell me how many litres of Coppercoat I would need to cover 50m2?

Many thanks to all again for taking the time to reply.

 

[John100156]

OK - I just logged on to the Coppercoat website and ran their calculator, the results are as follows:

I expect they have allowed some contingency and they also use the draft rather than the depth from below the waterline to keel which tends to increase the quantity required, so not a million miles out......!