I have no real experience in soldering anything. I am trying my best to learn but am having great difficulty with the solder not melting. When I apply the solder iron to the solder and/or metal, the solder does not melt for many, many minutes. And even then, I find myself trying to press down hard on the solder to try and melt it and when I do, I only get a ball of solder that hardens before I can get it to spread where I want it. Yes, I have heated the metal parts to be joined with the iron first and then touched the metal with the solder, but it still would not melt that way. Can it be that I may have the wrong type of solder? I am using one that is 40 tin/60 lead acid core. I don't know if there is any such thing as different types of solder. I would appreciate any comments from anyone with experience in soldering. Thank you,
Sugarfoot