Hello, I work for a small PCB Manufacturing plant in Michigan. I am somewhat new to the buisness, and my co-workers have been giving me info about solder paste, but there seems to be some questions about solder paste use We use Kester R562 solder paste. One of the things they are telling me is mixing new solder paste with old solder paste will rejuvinate the old paste. Is this true, or will it just ruin the new paste. Art Hampton