The discussion centers around a yellow epoxy-like material found on a PCB, speculated to be a two-part polyurethane used for protection against vibration and environmental damage. Participants express curiosity about its removal without damaging the PCB, with suggestions including paint strippers like dichloromethane. Concerns are raised about the safety of using such chemicals, especially without proper equipment and experience. The voltage of the PCB is clarified as 12 V DC, indicating it is not high voltage. Understanding the material's composition is essential for determining the safest removal method.