3Views3Replies

Author Options:

lead weights? Answered

can I use silicone molds for molting lead

3 Replies

user
Paige RussellBest Answer (author)2017-06-26

Hi Micheal,

Lead has a melting temperature of 621.5º F / 327.5º C which is too hot for the silicones that I'm familiar with. Smooth-On makes a product called Mold Max 60 that will withstand up to 560°F / 294°C which would work for tin and pewter, but not lead I'm afraid.

Sorry I don't have better news for you!

Best,
Paige

Select as Best AnswerUndo Best Answer

user
MichealM20 (author)Paige Russell2017-06-27

Thank you Paige I thought so and I will keep on making molds from melting aluminium cans they can withstand the high temperatures ,but like your class and will continue to log in for more

Michael

Select as Best AnswerUndo Best Answer

user
Fedayeen (author)MichealM202018-05-17

Hi Michael, the usual trick metal casters use is the cast what's called a negative (usually wax) where we fill a mould with wax and then when you cast your high temperature materials (like molten metal) it will burn the wax away and the metal with cool in the void it creates. Just look into the process call "Lost-wax casting"

Select as Best AnswerUndo Best Answer