Heya Marc...no faint imprint on the pans at all.
I got another reply that the manufacturer recommends 500°F as the temp the pans would last longer at, but they could withstand higher temps, but would not last as long.
They also mentioned the coating is a NSF approved coating and it’s not harmful, but it is VERY frustrating in that I specifically asked WHAT the non-stick coating is comprised of (water based, silicone, teflon, what exactly) and get no answer. NSF International is merely an independent testing company. If the coating is a synthetic PTFE containing coating, what if the NSF tests were conducted at 500°F? That means firing the pans above this point COULD be dangerous.
I am very dissapointed with the lack of information and knowledge from this seller of the pans I got. I just need to know if the friggen non-stick coating is PTFE free or not and, if not, what the maximum temp was used to attain the NSF certification. Sorry to vent.