Train these kids in proper workbench habits and shop safety - first. The
lead-free initaitve is real and in the US we will be working with a "mixed
environment" (repair of older equipment with compnents that may not be
able
to handle high temperatures (70 to 90 degrees higher depending upon
formulation used) required for lead-free solders.


It's more like 15 to 20 degrees C higher for lead free solder.