Antifouling Paint

[ccriders]

I have to clean and repaint the bottom of my boat. I estimate that I will need one and a half gallons of paint. A gallon and two quarts costs more that two gallons, so I will buy two gallons. So what should I do with the extra half gallon? Go ahead and apply it to the hull, save it for next time, give it to someone or dump it?
John

[sfchallenger]

Extra coats won't hurt, I'd put it all on the hull. Next time I do mine I'll do more than one coat, it's shocking how fast it wears off - I changed colour when I did mine so it's easy to see wear.

Don't dump it if you don't use it, dispose of it properly.

[AboardIndigo]

I would save it. You never know when you might need to touch up or help a dock-mate out with your extra.

[b40Ibis]

Can you use the rest on the dink?

[SloopJonB]

Originally Posted by ccriders

I have to clean and repaint the bottom of my boat. I estimate that I will need one and a half gallons of paint. A gallon and two quarts costs more that two gallons, so I will buy two gallons. So what should I do with the extra half gallon? Go ahead and apply it to the hull, save it for next time, give it to someone or dump it?
John

Use it - put extra coats on the high wear areas like the front of the keel, along the waterline etc. until you run out.

[chef2sail]

At 200 per gallon why wouldnt you save it. We put two coats on of Ultima 60...one red and one blue...we can see how it is wearing. Extra on the leading edges of the keel and rudder.

dave

[Fstbttms]

Originally Posted by ccriders

I estimate that I will need one and a half gallons of paint.

How many coats will a 1.5 gallons buy you? As previously mentioned, more is better. 2 coats on the hull, 3 at the waterline and leading & trailing edges. If there's any extra after that, put it on the boat. You will stretch the time between haulouts.

You tell me what that's worth.

[Bene505]

Most of the growth onthe hhull last summer was within 2 feet of the waterline.

Before launching yesterday, I put and extra coat in that location. Sanding barnacles is a real bear. their "roots" go way down into the gel coat.

Just keep going around until you use it up. As someone said, "It doesn't expire".

Regards,
Brad

[ccriders]

Thanks everyone,
Two gallons will give me two layers overall and as recommended three coats around waterline and leading edges. Sounds like a good plan.

So, as a follow-on, should I use the expensive stuff - Petit Trinidad SR - or the less expensive West Marine product? The marina waters, at about 85 degrees in the summer, in Corpus can grow stuff quite rapidly and I would really like to get two or more years between haul outs.
John

[Fstbttms]

Originally Posted by ccriders

Thanks everyone,
Two gallons will give me two layers overall and as recommended three coats around waterline and leading edges. Sounds like a good plan.

So, as a follow-on, should I use the expensive stuff - Petit Trinidad SR - or the less expensive West Marine product? The marina waters, at about 85 degrees in the summer, in Corpus can grow stuff quite rapidly and I would really like to get two or more years between haul outs.
John

As far as I can tell, West Marine no longer carries a house brand modified epoxy paint that is the equivalent of Trinidad. My suggestion is to use Trinidad and have the bottom cleaned relatively frequently. This will significantly lengthen the useful life of the paint.