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I recently bought a silicone soldering mat that has notches and grooves and it really helps with organizing my work space during projects (mostly phone repairs) . But I did some research on the mat and found out it was not ESD safe. So, my questions is that if I did buy a ESD safe mat, would it be okay to use the non-ESD safe mat on top of it. In other words, ESD safe mat on the bottom, and silicone non-ESD on top. Would there be any static electricity generated. Thanks, for the help. New.

Sadly you still run a risk even when you have an antistatic mat under it. As an example if you take a ballon and rub it on some cloth so it builds a static charge. The charge is strongest at the location where you rubbed. Why don’t you use some anti-static spray on it before you use it to be safe.