1. What is PTC heating film?

PTC heating film can be regulated by itself, According to different heating environment. When the temperature rise on certain point, the power and currency can be controlled and lessen the heating by rising resistance. But it does not mean it does not need thermostat. It is also need the thermostat to control the temperature. But compared to the general heating film, PTC heating film is more safe in using.

2. theadvantagesof the PTC heating film

It can prevent the overheating when heating film’s temperature rise on 60℃.According to heating film’s power and the area of overheating,It will reduce 10-30% consumption power and currency.

3.Test of PTC Heating Film and General Heating Film

Chart of the products power changes

First step,Each company heating film is operated.
Second step, Each heating film is cooled fully and operated again.
The Heating film must be able to make accurate power after primary and secondary heating as the initial power(Resistance should be no difference).
If heating film power is different every time when it is used, The Heating Film can not make accurate heat and has the probability of overheating when it is used prolongedly.

Ⅱ-2. The difference Power Graph after Primary and Secondary heating

Ⅱ-3. The Change Graph of Currency and Resistance

Ⅱ-4. The Change Graph of the Currency and Resistance(Compared With Competitors)

Ⅱ-5. The test result of Resistance Changes

Ⅱ-6. PTC Performance Test

Test Result