WHAT IS BALLAST MATERIAL IN COMPAC 19 II

[gcerrito]

Who can tell me what kind of ballast my COMPAC 19 II has?   Is it an iron keel, concrete, lead??

I was curious.

[Bob23]

I believe that they are all concrete. But others with more info may chime in.
Bob23

[Billy]

800lbs of concrete

[gcerrito]

You guys are great.  Thanks for the info an MERRY CHRISTMAS to all.

[skip1930]

I think with out documentation that the hollow keel was pored with 800 lb of cement and slug pig iron. [about 40 % of the boats weight].
The slug pig iron, may be much like the counter weights used in the casements of house windows hung on chains. ??

Never ever heard a word about lead.

Always wondered at the fact that the 'weight' was placed forward leaving an empty location at the stern for a bilge.
Of course that area open area would be more buoyant then what's ahead of it.

Pull up the cabin rug and you'll be looking at the top-O-concrete shaped like the bottom of the keel.
A few owners around here have pounded out the cement that has turned to concrete. Maybe they know the answer.

Why the question?

Just a thought, boats have been constructed with 100% concrete slurried over a wire form. There is a 30 footer, deep keel sitting here is Sturgeon Bay. No fiberglass, or paint covering or protecting the cement. Has not sunk yet. Good enough?

Now it's possible that any ferrous [if there is any] it's exposed to water and air could rust a bit. Never heard of any metal touching the inside of the fiberglass keel form. As to patching it up for small repairs I have used Marine-Tex and larger repairs can be made with 2 part West System's 610 Adhesive. Mix it and roll it on. Knock off the shine with brass wool and paint it.

Biggest danger is the water freezing and expanding when the boat is sitting on the hard?

Next time you drive through a highway construction site look at the piles of green powdered rebar that is used within the pored cement. It's powered coated to keep it from rusting within the cement while it turns into concrete.

[Back in the 1980's I built a paint line to paint rebar. Washed, phosphated, rinsed, induction heated till red hot. Down a ramp through a powder flow coater. Powder cures as bars cool. Still in use. Additionally I worked the line at HATCO Food Service in the water heater booster department. Rolled 11ga. steel shells with a pored cement and spun. All bull work as the lightest ones are 58 lb and the larger ones 110 lb. The cement saves the steel from rusting on the inside. Some of these booster have been in service since the 1950's. ]

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skip.

[gcerrito]

I have an earlier post where i discuss having some water enter the keel from a small hole in the leading edge of the keel.   I was asking because if there was iron in the keel, i was concerned about corrosion.

Boat is now out of water for a few months letting it dry out well before i start any repairs.