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Antifouling my hull

A forum for discussing topics relating to MacGregor Powersailor Sailboats

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Re: Antifouling my hull

Postby dlandersson » Wed Apr 11, 2018 11:18 am

Ditto 8)

Tomfoolery wrote:I'm not going to sand unless I have to. Pressure washing with a small nozzle, let it dry, then paint.
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Re: Antifouling my hull

Postby Gazmn » Sat Apr 14, 2018 12:12 am

Tomfoolery wrote:I'm not going to sand unless I have to. Pressure washing with a small nozzle, let it dry, then paint. There's what appears to be a good expoxy barrier coat under what's left of the ablative or hybrid bottom paint.

I used to use VC17 on my keel boat, every year, and never prepped that either. A good cleaning, and it's off to the races. But boy did that stuff stink. Like get high in minutes stink, and so volatile you have to keep a can of thinner handy, or it'll dry in the tray before you can get it onto the boat. Xylene, I think.

Oh, and I already have a can of Pettit Hydrocoat. Black (comes in a few colors). Bought it on sale, but still expensive. Water based, so shouldn't be so stinky.

https://www.westmarine.com/buy/pettit-p ... ecordNum=3


I had to Delegate mine :|



Make sure you specify any nooks & crannies like the CB compartment :P I had to do mine myself after the fact :x

Have it sandblasted, Then Epoxy barrier coat. Like Sumner, I used Seahawk; It's thicker & needs fewer coats & then a dif base color coat- So you don't go through to the barrier without notice.
All to Correctly Rebottompaint x3... After all... It's only money... :cry:
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Last edited by Gazmn on Sat Apr 14, 2018 12:55 am, edited 1 time in total.
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Re: Antifouling my hull

Postby Gazmn » Sat Apr 14, 2018 12:54 am

remember to look up in there...


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Re: Antifouling my hull

Postby warfin » Wed Apr 18, 2018 7:55 pm

I have mine lifted and placed on the hard stand every two years. Every few months or so, when I beach her, I give her a nice rub on the bottom. She seems to like that as the antifoul has lasted well in salt water over light coral.
Costs $1800 (Aus) all up. You get what you pay for.
I service the motor at the same time.
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Re: Antifouling my hull

Postby DaveC426913 » Sun Apr 22, 2018 1:08 am

So, it looks like spring weather is FINALLY upon us, up here in the Great White North.

And not a moment too soon! Launch Day is 6 days away!

So I'm thinkin' about moving forward with this painting. Not gonna sand.

If I use a water gun to clean it off, should I keep a scraper in-hand, to get any loose paint off? Or will the spray gun suffice?

Just spray, let dry, paint?
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Re: Antifouling my hull

Postby Sumner » Sun Apr 22, 2018 10:47 am

DaveC426913 wrote:... Not gonna sand.

If I use a water gun to clean it off, should I keep a scraper in-hand, to get any loose paint off? Or will the spray gun suffice?

Just spray, let dry, paint?


The success of any paint job is prep. I think you are taking a big chance on this one failing if you don't clean and sand first. I used an air DA sander and it went fast. HF now has an electric one...

https://www.harborfreight.com/power-too ... 69924.html

... if you don't have an adequate air compressor. It is listed as a polisher but can be used as a sander with the hook and loop discs,

Sumner

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1300 miles to the Bahamas and back -- 2015

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The Endeavour 37

Trips to Utah, Wyoming, Idaho, Canada, Florida

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Re: Antifouling my hull

Postby DaveC426913 » Thu Apr 26, 2018 4:03 pm

Welp, I went ahead and painted it.

Since no one could definitively tell me what was on there before, the best guess was XXX. So I did a light sanding and put on a coat of XXX. The rationale being: worst that happens is I find out in the fall that it wasn't the right thing, and I'll have to strip it or something next year.

It went very quickly. 2 hours of sanding and 2 hours of painting. I probably didn't sand enough, but I had little choice since rain was on the way and this was my only window.

Actually, I'm certain I didn't sand enough. Some of the old paint was flaking off on the roller even as I applied the new stuff.

But I"m pleased. It looks priddy. And it'll be interesting to see if I pick a few tenths of a knot when I'm out.
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Re: Antifouling my hull

Postby NiceAft » Thu Apr 26, 2018 5:29 pm

DaveC426913 said:
But y'all've given me some food for thought.

It looks priddy.



"y'all've" :!:
"priddy" :!:

You must be from a part of Canada much farther south than Toronto :D :D


Ray
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Re: Antifouling my hull

Postby Jimmyt » Thu Apr 26, 2018 7:20 pm

Sounds like he might be from my neck of the woods...

The Admiral can't say y'all in less than two syllables...

Priddy might take several minutes.
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Re: Antifouling my hull

Postby Highlander » Sat Apr 28, 2018 11:53 am

Not good to b rushin that kinda work Time is a valuable commodity & the paint is expensive , but not as Time consuming & Expensive as Fixin a Blistering Hull Plus the down time required to dry the hull out before havin to repair :?

JUst Sayin That,s All

If it,s worth doin then do it right I agree with Sumner

J 8)
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