Six steps and three tests to identify inferior insulation film
In the absence of effective supervision in the insulation film market, in order to avoid being deceived, consumers should learn more about this aspect and purchase skills to safeguard their rights and interests. Some industry experts pointed out that many deceptive tactics are actually not complicated. As long as you are careful during the purchase process, many deceptions will be exposed for their true nature.
Most insulation film tests are conducted around film, glass, and lighting. Therefore, all fraud methods are inseparable from these three props. Experts provide consumers with a "six-step, three-test" test procedure for reference.
The so-called "six steps" means that only after testing in strict accordance with the six steps can a relatively objective and real testing process be completed. include:
1. First feel the temperature of the test lamp to see if it reaches 500W heat;
2. Heat penetration test of ordinary glass without film;
3. Heat insulation test on ordinary glass after film is applied;
4. On-site test of the heat penetration test of the unfilmed front windshield in the car;
5. On-site test in the car. Comparative test after the film is applied to the front fender.
6. After the construction of the entire vehicle is completed, check the insulation effect again to prevent the goods from being misaligned.
"Three tests" refers to the three key steps in the entire testing process, and they are also the three best ways to detect fraud. As the front windshield insulation film accounts for a large proportion of the total price of the whole car film, unscrupulous merchants will often do tricks on the front windshield film. Therefore, in the "three tests" of the heat insulation film, the heat insulation film around the front windshield will be included. membrane as focus
First test: Ordinary glass light test
On a piece of ordinary glass, half of it is filmed and the other half is not filmed, and the same light (2 500W iodine tungsten lamps), the same distance and the same time is used to illuminate the difference in the thermal insulation effect of the two;
Second test: On-site comparison test of front windshield
In the cab, you can experience the actual heat insulation effect of the selected product model and the heat energy transmission condition without the film on site. The test is conducted in the actual environment. The feeling is intuitive and the quality of the product is clear at a glance.
Third test: On-site verification of the front windshield after the film is applied
After the construction of the entire vehicle is completed, use the same lighting conditions again to verify the heat insulation effect of the front bumper and check whether it is consistent with the heat insulation test effect on ordinary glass. If the heat insulation performance is similar, it means that the merchant's commitment and operation are correct. Authentic and trustworthy, otherwise it means there is suspicion that the goods are not correct.