What to use to make a mold?
On 23 Mar, 02:01, Eric Greenwell wrote:
sisu1a wrote:
It does avoid the breathing of lead vapors, something even a pilot
should avoid.
Is the sublimation rate of lead at room temperature significant?
Church roofs seem remarkably resistant to evaporation after hundreds
of years, as do the 120 year old lead water pipes in my house.
Ian
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