Re: Centreboard weighting
> I located a small beer brewery close to my home, and the brewer, aDON'T use isinglass! It is not what you want, even if it sounds like
> one-man-band, kindly let me have a jam-jar-full of concentrated
> isinglass, which he uses for fining beer, if it too cloudy!
water glass.
http://www.infoplease.com/ce6/society/A0825591.html
http://www.infoplease.com/ce6/sci/A0851590.html
-Peter Belenky
Grateful thanks to John, Roger, Paul, Bill and Clyde for all the
helpful advice.
I located a small beer brewery close to my home, and the brewer, a
one-man-band, kindly let me have a jam-jar-full of concentrated
isinglass, which he uses for fining beer, if it too cloudy!
The centreboard has had a coat and when it is thoroughly dry, I shall
do a bit of lead melting. Provided that my wife is well out of the
way, of course.
Another nice example of the freemasonry of home boat builders, and the
kindliness of our kibbutzers!
Alvan Eames.
helpful advice.
I located a small beer brewery close to my home, and the brewer, a
one-man-band, kindly let me have a jam-jar-full of concentrated
isinglass, which he uses for fining beer, if it too cloudy!
The centreboard has had a coat and when it is thoroughly dry, I shall
do a bit of lead melting. Provided that my wife is well out of the
way, of course.
Another nice example of the freemasonry of home boat builders, and the
kindliness of our kibbutzers!
Alvan Eames.
> My problem is that I need to protect the wood from the heat of theI just poured 160 pounds of lead into the daggerboard of my
> lead.
Singlehanded Schooner, with no trouble. Apart from some minor
scorching immediately adjacent to the lead, the pour shouldn't hurt
your centreboard.
> The suggestion is that ISINGLASS is painted on to the exposedTry a brewer's supply shop -- Isinglass is used as a fining agent to
> surfaces. Isinglass is unobtainable here in the UK these days,
remove cloudiness from beer. It's routinely available in North
America; I'd expect it to be the same in the UK.
--
Susan Davis <futabachan@...>
Put the centerboard on a flat surface with poly under it, and fill with
lead shot and pour epoxy into the shot to fill. You might want to
enlarge to square because it won't be solid lead but you can always
enlarge it later if the board doesn't sink properly. Clyde
wrote:
lead shot and pour epoxy into the shot to fill. You might want to
enlarge to square because it won't be solid lead but you can always
enlarge it later if the board doesn't sink properly. Clyde
wrote:
> I am in the closing stages of fitting out a Cartopper. The recommended[Non-text portions of this message have been removed]
> weighting of the centreboard is by pouring molten lead into a four ins
> square hole in the plywood.
>
> My problem is that I need to protect the wood from the heat of the
> lead. The suggestion is that ISINGLASS is painted on to the exposed
> surfaces. Isinglass is unobtainable here in the UK these days,
> although I remember it being used for the preservation of eggs in the
> 30's!
>
> Does any member of the Forum have any suggestion as to an available
> substitute for the Isinglass?
>
>
>
>
> Bolger rules!!!
> - no cursing, flaming, trolling, spamming, or flogging dead horses
> - stay on topic, stay on thread, punctuate, no 'Ed, thanks, Fred' posts
> - Pls add your comments at the TOP, SIGN your posts, and snip away
> - Plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA, 01930,
> Fax: (978) 282-1349
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As has been mentioned, there isn't alot of damage done to the wood by
molten lead, since it melts at such a low temperature, as I remember
right around 700 degrees. This is too low of a temperature to burn
wood. You do though want to insure that the wood is dry, any moisture
present can cause spattering with molten lead which can be dangerous.
Bill H.
molten lead, since it melts at such a low temperature, as I remember
right around 700 degrees. This is too low of a temperature to burn
wood. You do though want to insure that the wood is dry, any moisture
present can cause spattering with molten lead which can be dangerous.
Bill H.
> I am in the closing stages of fitting out a Cartopper. Therecommended
> weighting of the centreboard is by pouring molten lead into a fourins
> square hole in the plywood.the
>
> My problem is that I need to protect the wood from the heat of the
> lead. The suggestion is that ISINGLASS is painted on to the exposed
> surfaces. Isinglass is unobtainable here in the UK these days,
> although I remember it being used for the preservation of eggs in
> 30's!
>
> Does any member of the Forum have any suggestion as to an available
> substitute for the Isinglass?
Hi Alvan,
I, too, am just finishing a cartopper. I poured the lead without any
protection of the plywood. The piece of ply that I backed the hole
with got quite charred, but the centerboard ply didn't seem to burn
much. Seehttp://daviswiki.org/PaulThoberabout half way down the page
to see the end result.
Interesting; there are at least three Cartoppers being built by group
members. Maybe someone should host a regatta.
Paul
I, too, am just finishing a cartopper. I poured the lead without any
protection of the plywood. The piece of ply that I backed the hole
with got quite charred, but the centerboard ply didn't seem to burn
much. Seehttp://daviswiki.org/PaulThoberabout half way down the page
to see the end result.
Interesting; there are at least three Cartoppers being built by group
members. Maybe someone should host a regatta.
Paul
I didn't use any protection and had no significant charring. Wood is a
common material for protecting steel beams from fire (or was in the 1930s).
A little discoloring but, in my case, that is hidden under the fiberglass.
See the last (bottom) picture at
http://home.earthlink.net/~derbyrm/Dayawl.html
Roger (I found waterglass at the pharmacy of a drug store in 1950 if that
helps.)
derbyrm@...
http://home.earthlink.net/~derbyrm
common material for protecting steel beams from fire (or was in the 1930s).
A little discoloring but, in my case, that is hidden under the fiberglass.
See the last (bottom) picture at
http://home.earthlink.net/~derbyrm/Dayawl.html
Roger (I found waterglass at the pharmacy of a drug store in 1950 if that
helps.)
derbyrm@...
http://home.earthlink.net/~derbyrm
----- Original Message -----
From: "John Bell" <smallboatdesigner@...>
> Try looking for "water glass" or "sodium silicate". It is most certainly
> still available, but I don't know where you'd find it at retail.
>
> ----- Original Message -----
> From: "AlvanEames" <ALVAN_EAMES@...>
>
>> I am in the closing stages of fitting out a Cartopper. The recommended
>> weighting of the centreboard is by pouring molten lead into a four ins
>> square hole in the plywood.
>>
>> My problem is that I need to protect the wood from the heat of the
>> lead. The suggestion is that ISINGLASS is painted on to the exposed
>> surfaces. Isinglass is unobtainable here in the UK these days,
>> although I remember it being used for the preservation of eggs in the
>> 30's!
>>
>> Does any member of the Forum have any suggestion as to an available
>> substitute for the Isinglass?
>>
>>
>>
>>
>>
>> Bolger rules!!!
>> - no cursing, flaming, trolling, spamming, or flogging dead horses
>> - stay on topic, stay on thread, punctuate, no 'Ed, thanks, Fred' posts
>> - Pls add your comments at the TOP, SIGN your posts, and snip away
>> - Plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA, 01930, Fax:
> (978) 282-1349
>> - Unsubscribe:bolger-unsubscribe@yahoogroups.com
>> - Open discussion:bolger_coffee_lounge-subscribe@yahoogroups.com
>> Yahoo! Groups Links
>>
>>
>>
>>
>>
>>
>>
>
>
>
>
>
> Bolger rules!!!
> - no cursing, flaming, trolling, spamming, or flogging dead horses
> - stay on topic, stay on thread, punctuate, no 'Ed, thanks, Fred' posts
> - Pls add your comments at the TOP, SIGN your posts, and snip away
> - Plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA, 01930, Fax:
> (978) 282-1349
> - Unsubscribe:bolger-unsubscribe@yahoogroups.com
> - Open discussion:bolger_coffee_lounge-subscribe@yahoogroups.com
> Yahoo! Groups Links
>
>
>
>
>
>
>
>
Try looking for "water glass" or "sodium silicate". It is most certainly
still available, but I don't know where you'd find it at retail.
still available, but I don't know where you'd find it at retail.
----- Original Message -----
From: "AlvanEames" <ALVAN_EAMES@...>
To: <bolger@yahoogroups.com>
Sent: Tuesday, August 23, 2005 2:56 PM
Subject: [bolger] Centreboard weighting
> I am in the closing stages of fitting out a Cartopper. The recommended
> weighting of the centreboard is by pouring molten lead into a four ins
> square hole in the plywood.
>
> My problem is that I need to protect the wood from the heat of the
> lead. The suggestion is that ISINGLASS is painted on to the exposed
> surfaces. Isinglass is unobtainable here in the UK these days,
> although I remember it being used for the preservation of eggs in the
> 30's!
>
> Does any member of the Forum have any suggestion as to an available
> substitute for the Isinglass?
>
>
>
>
>
> Bolger rules!!!
> - no cursing, flaming, trolling, spamming, or flogging dead horses
> - stay on topic, stay on thread, punctuate, no 'Ed, thanks, Fred' posts
> - Pls add your comments at the TOP, SIGN your posts, and snip away
> - Plans: Mr. Philip C. Bolger, P.O. Box 1209, Gloucester, MA, 01930, Fax:
(978) 282-1349
> - Unsubscribe:bolger-unsubscribe@yahoogroups.com
> - Open discussion:bolger_coffee_lounge-subscribe@yahoogroups.com
> Yahoo! Groups Links
>
>
>
>
>
>
>
I am in the closing stages of fitting out a Cartopper. The recommended
weighting of the centreboard is by pouring molten lead into a four ins
square hole in the plywood.
My problem is that I need to protect the wood from the heat of the
lead. The suggestion is that ISINGLASS is painted on to the exposed
surfaces. Isinglass is unobtainable here in the UK these days,
although I remember it being used for the preservation of eggs in the
30's!
Does any member of the Forum have any suggestion as to an available
substitute for the Isinglass?
weighting of the centreboard is by pouring molten lead into a four ins
square hole in the plywood.
My problem is that I need to protect the wood from the heat of the
lead. The suggestion is that ISINGLASS is painted on to the exposed
surfaces. Isinglass is unobtainable here in the UK these days,
although I remember it being used for the preservation of eggs in the
30's!
Does any member of the Forum have any suggestion as to an available
substitute for the Isinglass?