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Adding lead ballast

 
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Lorence M

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Since: Jul 08, 2003
Posts: 2



(Msg. 1) Posted: Tue Jul 08, 2003 11:19 pm
Post subject: Adding lead ballast
Archived from groups: rec>boats>building (more info?)

I would like to add about 300 lb. of lead to the inside of the
hull of a fiberglass Luger 21, centerboard. This model
has a lighter keel than the swing keel version. The ballast was
recommended by the manufacturer, but not installed by the original
owner.
I can get thin lead sheets, aprox. 1/8" thick.
I plan to brush epoxy on the hull (floor) between the ribs and
on the lead, then press/roller down the lead. Sort of putting
down a new layer of fiberglass on top of the old.
Let the epoxy cure, then apply another layer of lead on top
of the first layer. Building up successive layers of lead sheets.
Finally covering the lead with fiberglass.

Bad idea? Critics or suggestions welcome

Thank you
Lorence

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Lew Hodgett

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Since: Jun 30, 2003
Posts: 132



(Msg. 2) Posted: Wed Jul 09, 2003 5:33 am
Post subject: Re: Adding lead ballast [Login to view extended thread Info.]
Archived from groups: per prev. post (more info?)

"Lorence M" writes:

 > I would like to add about 300 lb. of lead to the inside of the
 > hull of a fiberglass Luger 21, centerboard.
<snip>
 > I can get thin lead sheets, aprox. 1/8" thick.
 > I plan to brush epoxy on the hull (floor) between the ribs and
 > on the lead, then press/roller down the lead. Sort of putting
 > down a new layer of fiberglass on top of the old.
 > Let the epoxy cure, then apply another layer of lead on top
 > of the first layer. Building up successive layers of lead sheets.
 > Finally covering the lead with fiberglass.
 >
 > Bad idea? Critics or suggestions welcome

Sounds like a lot of work with basically unknown results.

When I installed my ballast, I made a mold using a 4" steel angle iron with
dividers on 12" centers.

Each triangular lead pig was about 30 lbs.

Stacked the pigs so the triangles interlocked.

When all pigs were in place, mixed epoxy, added sand for bulk, and poured
the goop around the pigs.

Took about a week because of the exothermic reaction of the epoxy.

When finished, laid some glass on top to seal everything.

HTH


--
Lew

S/A: Challenge, The Bullet Proof Boat, (Under Construction in the Southland)
Visit: <http://home.earthlink.net/~lewhodgett> for Pictures<!-- ~MESSAGE_AFTER~ -->

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