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chrisk
12-23-2008, 12:40 PM
I'm working on a Bolger Single-Handed Schooner and it calls for a weighted daggerboard. Basically, lead filled about 1' x 1' x 2" in the bottom end of the daggerboard. The plans say to expect it to weight about 106 lbs.

After asking in many tire stores for their old tire weights and being refused, I finally found a local mechanic who was happy to support me on my project and gave me what he had at the time. He doesn't do much tire work he said so it may be a while before I get very much more from him.

Anyway, I now have 45 lbs of tire weights and need to figure out how to properly handle lead and create a safe setup to eventually get all 106 lbs into the daggerboard.

I have a good respirator (works great when I use epoxy, without it I get a runny nose for a day or two after working with a lot of epoxy, but no symptoms at all when I use it).

What's the best way to separate the lead from the metal clasps that hold the lead to the tire, just throw a tire weight into a vat and after the lead is melted pick out the metal ?

What kind of vat do I need to melt the lead in and how do I get one cheap ?

As I collect lead should I melt smaller amounts at a time into a bar form and keep them stored that way or just ry to do the whole thing at once starting from the tire weights ?

When the time comes to pour the lead into the dagger board I've heard it's best to try and do it all at once so that it cools as one solid piece.

What type of equipment would I need to try and melt all 106 lbs at once and make one pour out of it ?

Is it really feasible for a home builder to try a 106 lb pour all at once and if not what is a good alternative ?

Any pointers to instructions on how to properly handle molten lead would be appreciated. Between the heat of molten lead and lead's toxicity I want to treat this procedure with the appropriate respect. This is one of those times when it's better to learn from other people's experience then from my own.

Thanks
Chris Kottaridis

gert
12-23-2008, 02:18 PM
What's the best way to separate the lead from the metal clasps
they will "float" in the molten lead, just skim them off with a perforated metal lathel.


As I collect lead should I melt smaller amounts at a time into a bar form
I use "Chunky Soup" cans, full they weigh 13.5 lbs. each.
Currently have 40 of the 80 I will need. Make some spares, they come in handy; I currently have a dozen in a Dairy box in the back of the van for traction in the snow; and they make great hold down.


What type of equipment would I need to try and melt all 106 lbs at once and make one pour out of it
Tiger Torch.

Do a search; there's been lots of good advise here on this.

Jim Ledger
12-23-2008, 02:52 PM
Here's one of my threads that might answer a few questions...

http://www.woodenboat.com/forum/showthread.php?t=66731

Thorne
12-23-2008, 05:44 PM
You don't HAVE to melt the lead -- you can either buy sheet lead, or put what you've got into a cutout in the daggerboard and cover / bed with epoxy.

People also use lead shot for this - consider asking your local rifle range for what they've dug out of the earthen backstop behind the targets. Wash it, dry it completely, then pour into the cutout in the wood along with epoxy, then cover with glass cloth and more epoxy.

If you do decide to melt lead, find someone to help you who has done it before. Biggest risk is getting damp into the form or the lead -- it can cause the molten lead to explode / splatter in all directions. Don't ask me how I know this....

Tom Robb
12-23-2008, 06:52 PM
I'd work outdoors and stay up wind of the melting lead.
I'm not clear on why one makes ingots first. I'd think melting once, skimming off the dross and clips, then pouring once would be quite enough hassle, not to mention the wasted fuel melting twice.
When you begin the melt don't try to melt the whole shebang at once. melt a smallish amount then add bits to the puddle as they melt. It'll go faster.
DRY - NO MOISTURE present as said above.
Long sleves and pants. Leather gloves and shoes - no skin available to burn.
Pouring 106lbs at once will be hard work. Have a level headed friend help if you can find one. Plan each move in excruciating detail.
Have fun. Save the beer untill it's over.

Jim Ledger
12-23-2008, 06:57 PM
Don't forget a face shield and eye protection.