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Docsnow
#1 Posted : Friday, October 22, 2010 11:36:21 PM(UTC)
Docsnow

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To All,

I was just wondering Think When some of the member had their bottoms blasted to bare Aluminum have U ever gave it a thought to have it gel coated after properly etching it etc. What would be some of the Pro’s & Con’s be? Whistle Now I know U guys in salt & brackish water would have a problem Brick wall but us fresh water boaters may be able to get away with it Pray with some of the new clear anti fouling polishes & agents they have on the market today. AnyWho just something to toss around on this chilly drizzly day Anxious

Norm,

Big BigMs Live On Applause Applause
http://www.picturetrail.com/gid23690601 Try it now there's music to listen to while U view the Big M's

http://www.PictureTrail..../index.php?clubID=20726 this one for the Pix club


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fastjeff
#2 Posted : Saturday, October 23, 2010 12:28:37 AM(UTC)
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Gel coat is polyester instead of epoxy (barrier coat). It might work, but the adhesion of epoxy is gotta be a lot better. The AF paint goes on last, so there wouldn't be much of a reason for it.

Jeff
"...reality is not nearly as lovely as the world of Liberal Land. No wonder so many people want to go there." - Tom Sowell
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GB49
#3 Posted : Saturday, October 23, 2010 12:52:23 AM(UTC)
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Would it flex/expand/contract with the Aluminum?
1986, 32' Sedan, twin 360ci, 275hp Chrysler's w/ K&N flame arrestors
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dependo
#4 Posted : Saturday, October 23, 2010 1:52:51 AM(UTC)
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Jeff, I think Gary Kramer who has a 32 and writes for Hartline Boating Magazine has done it to his BigM .
I have his email if you need it. Wayne
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twin 318
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fastjeff
#5 Posted : Saturday, October 23, 2010 4:16:53 AM(UTC)
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.."Would it flex/expand/contract with the Aluminum?"

It's a LOT more flexible than aluminum! I'd be concerned with adhesion, however. If it starts falling off.....

Jeff
"...reality is not nearly as lovely as the world of Liberal Land. No wonder so many people want to go there." - Tom Sowell
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bruegf
#6 Posted : Saturday, October 23, 2010 6:35:42 AM(UTC)
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I still wonder about going bare aluminum on the bottom. There are thousands of small aluminum fishing boats and pontoon boats here in MI that don't have bottom paint and they seem to hold up just fine. Might get a bit more slime growth than w/ af bottom paint, but nothing a scrub w/ a coarse brush a couple of times a season wouldn't get rid of quickly.

I've finally run out of my stock pile of Trilux II bottom paint and need to start doing something different next spring. Anyone know why this would be a bad idea?

Fred
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Barkleydave
#7 Posted : Saturday, October 23, 2010 2:11:51 PM(UTC)
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I see no advantage of using gelcoat on alluminum. Poor adhesion, expensive and slime would still build up.

It is common practice on large alluminum houseboats to have bare hulls. These vessels travel at 6 to 8 mph and average approx 1 gpm. Most I have seen spend 99 percent of the time in the slip and are used as weekend party platforms rather than serious boats.

Cleaning the bottom every couple of weeks would be required to reduce the loss of speed and increased fuel consumption.

Advantage of going bare alluminum is it greatly reduces the effects of galvanic corrosion since the electrons are not focused on small bare areas such as chines, keels, rudders etc.


dave


None
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dougrose
#8 Posted : Sunday, October 24, 2010 2:53:14 AM(UTC)
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Quote:
weekend party platforms rather than serious boats


After all these years I find out that I am not a serious boater?


1975 32' Flybridge Sedan, twin Perkins 6-354 diesels, 1:1.53 velvetdrives, 16 X 19 props. Merritt Island, Florida
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