Hot glue high or low temp

Question

I'm just wondering on the show whether Ben uses a high or low temp hot glue gun? Does it matter when gluing to things like PCB's? Wondering if it can possibly get hot enough to melt solder or plastic if using high temp.

mvnieuw · Accepted Answer

I did indeed misread your question, thanks for the clarification. When working with PCB's my experience is that the low temperature gun is good enough to do the job. It also depends on the gluesticks you want to use. The low temp sticks are very cheap and work easy. Also with the low temp stick, when you burn yourself, it will hurt a lot less than the high temp guns. The high temp glue gives 3rd degree burns. When you look at a PCB, it is resisting very high temperatures, 350 degrees did not burn my pcb at all, it might get a little discolored, but the board was not really affected. At these high temperatures it is possible that small traces come loose from the pcb. When you look at solder, the temperature for 60/40 solder is 190 degree, 63/37 will melt around 180 degree. Leadfree solder has a higher temperature, but is dependent on the metal mixture. For the solder to become liquid, it will need to take +20 degrees above this temperature to really mess up your work. Also when just placing a small amount of glue, it will not have enough capacity to make a differenct. Al temperatures are in Celcius. Marco.

Hot glue high or low temp

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