Source: Link Testing Instruments Co., Ltd
Window film is a thin film or laminate that can be installed to the interior of glass surfaces in automobiles, boats, homes and buildings. This article discusses automotive window film that can be applied on the windshield or sunroof of the automobiles.
When the glass is broken it holds together, preventing dangerous shards from flying about, or to make it more difficult for an intruder to gain entry. That’s why the automotive window film is also known as anti-blast window film. The automotive window film can also reduce heat and glare and prevent the UV light. Moreover, by offering an unimpeded view from the low-light side but virtually no view from the high-light side, the automotive window film can protect the privacy of the users.
Generally, the automotive window film should have sufficient flexibility so that it can resist the impact from the external forces. If the impact resistance of the automotive window film is insufficient, when the automotive glass encounters external impact, the window film may not be able to protect the passengers from the dangerous shards and as a result the passengers may get wounded. Therefore, it is important for the manufacturers to inspect the impact resistance of the automotive window film to ensure its performance.
Figure 1. Automotive Window Film
This article provides a simplified method for impact test of automotive window film. The specimens are provided by one brand automotive window film manufacturer. The testing instrument used in the tests is Link Testing’s LTJM-06 Pendulum Impact Tester.
The tests can be performed according to the following procedures.
According to the test results, the manufacturer can determine whether the impact resistance of the automotive window film meets the requirement for practical use and may improve the manufacturing craft or change the raw materials to improve the quality of their products.
For more details about LTJM-06 Pendulum Impact Tester, please visit www.linktesting.org
About Link Testing Instruments Co., Ltd:
Link Testing Instruments Co., Ltd is one leading supplier of packaging testing instruments, which is headquartered in Jinan, China.