I know that lines are designed for specific temperature ranges and could become stiff or limp when taken out of that range. I also know that sun block kills lines. The question is if I'm going to do permanent damage to my Rio Switch line by fishing it in hot salt water when I go to Florida this winter to see family. I don't want to buy a new line for a short one week trip and maybe only a day on the water. Obviously I'll clean my gear, including the line.