ASTM F1115

Test Materials: ASTM F1115 specifies the use of flexible packaging materials such as films, laminates, and pouches to assess the peel strength of seals. The materials typically include heat-sealed or adhesive-bonded substrates, with a focus on evaluating the adhesion quality of the seal between the packaging components.
Test Process: The test involves placing the test specimen under a controlled peel force, usually at a 90-degree angle. A standardized testing machine applies a constant peeling force at a specified rate, typically around 300 mm/min. The test measures the force required to peel apart the sealed layers, and the results help assess the integrity and durability of the seal.
Test Result Interpretation: The test results are interpreted by examining the peak force and the overall force-displacement curve. A high peak force indicates strong adhesion, while a consistent peel force without significant fluctuations suggests a uniform seal. Lower values or irregular patterns may indicate weak adhesion, which could compromise the seal integrity in real-world conditions.