The graphene positive temperature coefficient (PTC) electric heating sheet is composed of inorganic polymeric particles of semi-conductive heating material and thermistor materials. The polymeric particles in the sheet will be excited to release heat when energized with electricity, the PTC will change along with the rise of temperature, and its resistance value will rise in steps after the temperature reaches a certain degree. The graphene PTC electric heating sheet is one of the most advanced heating solutions, it will save more than 20% to 30% of the cost as compared with the traditional solution.
Advantages
The nanocarbon ink inside the graphene PTC sheet features automatic temperature control ability; it is superior to the traditional solution of temperature sensor;
The special nanocarbon ink composed of graphene and multiple microelements features quick heating and long-range radiation, the temperature can be controlled independently in each room, and the temperature is even and comfortable;
The anion infrared ray generated when heating is benefit for human health;
It is easy to apply without installing pipelines. It can be applied under high humidity environment and applicable for various of materials such as cement, tiles, carpets and so on.

No-Noise Design
The graphene electric heating sheet features no noise, which will be beneficial for your sleeping.

A New Economic Heating Solution
With intelligent operation, it consumes very little electricity. It features great stability. No need to repair once damaged or scratched. It works without the traditional pipelines and boilers. And it saves cost in large degree.

Advantages of Graphene PTC Electric Heating Sheets
- Over 50 years service lifetime.
- IPX7 waterproof grade, it works normally when soaked in water with power on. The current leakage is only 0.01mA, electromagnetic radiation is 0.65μT.
- Comparison among other heating solutions
| Graphene PTC Heating Film | Water-Gas Heating System (boiler) | Heating Cable | Traditional Heating Film | |
| System Structure | Graphene heating sheet, insulation board, control panel | Gas boiler, pump, magnetic valve, insulation board, control panel, heat radiator, water pipelines | Heating cable, insulation board, control panel | Traditional heating sheet, insulation board, control panel |
| Installation (100m2) | 2 persons, 1 day | 4 persons, 5 days | 4 persons, 1 day | 2 persons, 1 day |
| Maintenance Cost | No need | Replace of parts and cleaning of pipelines each year | No need | No need |
| Reliability Control | About 45℃ self-limited temperature rise | Risk of water leakage | External temperature sensor and controller | Low reliability, thermal decay is serious after years |
| Effect | Planar heating, room heated within 40 minutes, hot-cold temperature | Striation heating, room heated in over 4 hours, hot-cold temperature difference above 10℃ | Striation heating, room heated in about 4 hours, hot-cold | Planar heating, room heated within 60 minutes, hot-cold temperature difference |
| difference below 5℃ | temperature difference above 15℃ | above 10℃ | ||
| Service Life | Over 50 years | Water pipelines 50 years, heat radiator 8 years, boiler fire tray 3 years | 30 ~ 50 years, cable sleeve decay in 10 years, electromagnetic radiation rises seriously | 3 ~ 5 years due to serious heat decay |
| Cost in Using (100m2 building area) | RMB700/month (room temperature 18℃) | RMB1,500/month (room temperature 18℃) | RMB1,500/month (room temperature 18℃) | RMB800/month (room temperature 18℃) |
| Application Environment | No special requirement | Above 60m2 | Mainly for small rooms like kitchen and toilet | No special requirement |

Construction Materials
- Insulation board (optional according to environment)
- Graphene PTC electric heating sheets
- Cement gel (for sealing non-woven fabrics)

