Tensile Strength Test for Plastic Film
What Is Tensile Strength?
Tensile strength measures the maximum stress a plastic film can withstand while being stretched before breaking.
It indicates the film’s mechanical strength, flexibility, and resistance to stretching during filling, sealing, and transportation.
Why Tensile Testing Is Important
- Prevents film breakage during filling & sealing
- Ensures load-bearing capacity for heavy or liquid packaging
- Evaluates film orientation & lamination quality
- Confirms performance after retort, freezing, or aging
- Key parameter for vacuum bags and spout pouches
Test Conditions
- Temperature: 23°C ±2°C
- Relative Humidity: 50% ±5%
- Sample thickness measured before testing