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#1
March 25th 09, 02:59 PM
posted to rec.aviation.soaring
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What to use to make a mold?
On 24 Mar, 23:20, AK wrote:
On Mar 24, 12:24*pm, The Real Doctor wrote: It might be worth thinking about using plumber's solder instead. It's a lead-tin eutectic alloy, which means it melts at a significantly lower temperature (183 degrees C), but still has a high density (84% that of lead). Do you know of good source for this alloy (I don't know if I want to go to Radio Shack to buy 40 lb of solder? My wallet would be way too light and then I would have to buy even more of the alloy. Builders' merchants used to sell it by the kilogram, but it's banned or about to be banned for domestic use so may be harder to find in the UK now. Dunno about where you are. Ian 
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