Buying and melting pure antimony? Believe me, you don't want to go there. There are any number of high antimony alloys that will easily mix with your pure lead and tin. If you insist on going with Rotometals, I would suggest their Super Hard Alloy which consists of 30% antimony. Personally, I buy linotype from sellers on the internet forums for much, much less than Rotometals' price.
Don
