ASTM D5458

Test Materials: ASTM D5458 specifies the use of stretch wrap films that are typically made from low-density polyethylene (LDPE) or other similar polymer materials. The film should be free from defects, and the sample must represent the typical stretch wrap used in packaging applications.
Test Process: The test involves placing a film sample between two surfaces, applying a controlled force, and measuring the cling strength. The film is subjected to a peel test, where the cling force required to separate the film from a surface is recorded.
Test Result Interpretation: Results are expressed in terms of cling force, which quantifies the adhesive strength between layers of stretch film. Higher cling forces indicate stronger adhesion, while lower forces suggest weaker cling properties. The results help determine the film’s effectiveness in holding and securing packaged products.