Question

How long does it take a soldering iron to heat up?

Answer 1

Yes, you can solder without flux. While it is helpful in the process of soldering as the flux helps break down the oxides on the metal, it is not needed. Also, most solder nowadays come with a rosin core which does the job of flux helping breaking down oxides.Mar 21, 2020

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approximately 30 to 90 seconds

Not waiting long enough for your soldering iron to reach the necessary temperature will cause it to function, poorly. For this reason, it is important to know how long it will take for a soldering iron to heat up. It takes approximately 30 to 90 seconds for a soldering iron to heat up.