On 23 Mar, 00:23, AK wrote:
I want to make a small mold I would later use to create a fiberglass
container to hold lead weight. It would be nice if *mold material can
withstand 500 degrees Fahrenheit so I can pour lead into it and then
cover it by fiberglass.

I'm a little puzzled here. When you have filled the mould with lead
and covered it with fibreglass, won't the mould still be in there. Is
that OK?

How big is this thing? How complicated is the shape?

Ian