What are the safety hazards of continuing to use a Teflon heater after the coating is damaged?

Continuing to use a damaged Teflon heater may cause a series of safety hazards, including but not limited to the following:
Electrical safety hazards
Short circuit risk: As mentioned above, the Teflon coating has an insulating effect. After the coating is damaged, the internal heating element may be exposed. When in a humid environment or in contact with conductive materials, a short circuit may easily occur, causing the circuit to trip, affecting the normal operation of the equipment, and may even damage the electrical equipment.
Leakage hazard: Damage to the coating causes the insulation performance to decrease, and the heater may leak. Once the human body comes into contact with a leaking heater, an electric shock accident will occur, causing serious harm to personal safety.
Fire hazard
Local overheating causes combustion: Damage to the coating will cause uneven heat distribution and local overheating. When the local temperature reaches the ignition point of the surrounding combustible materials, a fire may occur. If there are flammable chemical raw materials, packaging materials, etc. around the heater, the risk of fire will increase significantly.
Fire caused by heating element failure: After the coating is damaged, the heating element is more susceptible to external factors due to exposure, accelerating aging and damage. For example, if the heating wire burns out and generates electric sparks, if there are flammable gases or dust around, they may be ignited, causing fire or even explosion.
Chemical safety hazards
Release of toxic substances: Teflon is stable within the normal operating temperature range, but if the coating is damaged and locally overheated, it may decompose and produce toxic gases, such as hydrogen fluoride. If used in a poorly ventilated environment, these toxic gases can cause harm to the human body, leading to health problems such as respiratory irritation and poisoning.
Corrosion product pollution: After the coating is damaged, the metal matrix is ​​exposed and easily corroded. Corrosion products may be mixed into the heated substance, causing pollution. In industries such as food processing and pharmaceutical production, this may affect product quality and even harm the health of consumers.
In view of the above safety hazards, after the Teflon heater coating is damaged, the damage should be assessed in time, and appropriate repair or replacement measures should be taken to ensure safe use.