sig552
10-21-2012, 04:47 AM
Hello all,
My Dad and I cast some ingots from roofing lead and some WW. This lead has a hardness of about 9 to 9.5 (measured with our Cabine Tree tester - thanks Jim!)
In order to increase its hardness we want to know how much Linotype to add. Am I correct in assuming that a 50-50 ratio will result in a hardness of 15 or 16? That is the 9 from the ingots plus 22 from the Linotype divided by 2?
Thanks in advance for any insight,
Mark and Jon
My Dad and I cast some ingots from roofing lead and some WW. This lead has a hardness of about 9 to 9.5 (measured with our Cabine Tree tester - thanks Jim!)
In order to increase its hardness we want to know how much Linotype to add. Am I correct in assuming that a 50-50 ratio will result in a hardness of 15 or 16? That is the 9 from the ingots plus 22 from the Linotype divided by 2?
Thanks in advance for any insight,
Mark and Jon