I need suggestions for good materials to use for molding and casting..(details inside :) )
I need some casting(?) material ideas. I'm looking for fairly inexpensive material to make selector knobs (so it needs to cure to a hard, strong material)...would that material work also for casting things like remote control casing? If not, what would be a good material?... then i also need to make some thermocoupler holders, which need to be able to handle 300 degrees for a very long time. a hard material would be preferable, but, something with a firm rubbery texture would be ok also.... THEN, what material would be good for making the molds to pour the casting materials into to form those items? First, I'd want something solid i could cut into to form the shapes I want to cast, then I need something to put over my first cast(s) after I 'fine tune' them so I can make more.....So.. any ideas/suggestions?