Film Heat Shrink Tester for Plastic Film

Film Heat Shrink Tester from Cell Instruments, designed for precise plastic film testing. Learn about ASTM D2732 compliance, and customization options.

Importance of Plastic Film Testing

Plastic films are integral to numerous industries, including packaging, medical devices, food production, and electronics. Their versatility and functionality make them a popular choice, but their performance is highly dependent on their physical properties, such as strength, flexibility, and thermal behavior. One critical aspect of plastic film performance is heat shrinkage, which can significantly impact the material’s effectiveness and reliability in its intended application. Accurate and reliable testing of plastic films is essential to ensure that they meet industry standards and perform as expected in real-world conditions.

Film Heat Shrink Tester from Cell Instruments

Introduction to the Film Heat Shrink Tester from Cell Instruments

Cell Instruments, a leader in the manufacturing of materials testing equipment, offers a state-of-the-art Film Heat Shrink Tester designed specifically for evaluating the heat shrinkage properties of plastic films. This advanced instrument provides precise measurements and insights that are crucial for quality control and product development in various industries.

Film Heat Shrink Tester for Plastic Film

Key Features and Benefits

The Film Heat Shrink Tester from Cell Instruments boasts several key features that make it a valuable tool for any laboratory or production facility:

  • High Precision: Accurate temperature control and measurement ensure reliable results.
  • User-Friendly Interface: Intuitive controls and digital display make the tester easy to operate.
  • Versatility: Suitable for a wide range of plastic films used in different applications.
  • Compliance: Meets international standards, including ASTM D2732.

Technical Specifications

The Film Heat Shrink Tester offers robust technical specifications designed to meet diverse testing needs:

Sample Size ≤160 mm x 160 mm
Temperature Range Ambient ~ 200°C
Accuracy ±0.3°C
Dimension 37*44*28 LWH cm
Power Supply 220V 50Hz


This versatile instrument is used across various industries for applications such as:

  • Packaging: Testing the shrinkage properties of films used in food and consumer goods packaging.
  • Medical Devices: Ensuring the reliability of films used in medical packaging.
  • Electronics: Evaluating films used in protective and insulative applications.

Test Methods for Film Heat Shrinkage

Explanation of Film Heat Shrinkage

Heat shrinkage refers to the reduction in size of a plastic film when exposed to heat. This property is vital for applications where the film needs to conform to a specific shape or provide a tight seal.

Heat shrinkage is a critical parameter that affects the usability and performance of plastic films. Measuring heat shrinkage is important because:

  1. It ensures that the film will behave as expected during application.
  2. It helps in maintaining the integrity and appearance of packaged products.
  3. It prevents failures and defects in the final product.

Heat shrinkage can impact various aspects of film performance, including:

  1. Fit and Finish: Proper shrinkage ensures a tight and uniform fit.
  2. Strength: Excessive shrinkage can lead to film brittleness or tearing.
  3. Aesthetics: Uniform shrinkage maintains the visual appeal of packaging.

Detailed test procedures

To conduct a heat shrinkage test using the Film Heat Shrink Tester, follow these steps:

  1. Sample Preparation: Cut the film into the required size, typically 100mm x 100mm.
  2. Instrument Setup: Set the desired temperature and heating time on the tester.
  3. Testing: Place the film sample in the tester and start the heating process.
  4. Measurement: After heating, measure the dimensions of the film to determine the shrinkage percentage.

Interpretation of results

Analyzing the test data involves comparing the initial and final dimensions of the film. The shrinkage percentage is calculated using the formula:

Unrestrained Linear Shrinkage (%) = [(Lo – Lf) / Lo] x 100%

Lo = Initial length (100 mm)
Lf = Length of the side after shrinking

Common Metrics and What They Indicate About the Material

  1. Shrinkage Percentage: Indicates the extent of dimensional change.
  2. Uniformity: Consistent shrinkage across different samples suggests stable material properties.
  3. Rate of Shrinkage: Helps in understanding how quickly the material responds to heat.

ASTM D2732: Standard Test Method for Unrestrained Linear Thermal Shrinkage of Plastic Film and Sheeting

Introduction to ASTM D2732

ASTM D2732 is a standardized test method developed by ASTM International for measuring the unrestrained linear thermal shrinkage of plastic films and sheeting. This standard is widely recognized and used to ensure consistency and reliability in film shrinkage testing.


Types of customizations available for specific testing requirements. Cell Instruments offers a range of customization options to meet specific testing needs:

  1. Specialized Sample Holders: For non-standard sample sizes or shapes.
  2. Custom Temperature Ranges: For materials requiring specific testing conditions.
  3. Automated Data Logging: Integration of software for automated data collection and analysis.


What types of plastic films can be tested with the Film Heat Shrink Tester?

– The Film Heat Shrink Tester can test a wide variety of plastic films, including polyethylene, polypropylene, PVC, and others used in packaging, medical, and industrial applications.

How accurate are the test results from the Film Heat Shrink Tester?

– The tester provides highly accurate results with a temperature accuracy of ±0.3°C, ensuring reliable and consistent data.

Can the Film Heat Shrink Tester comply with ASTM D2732?

– Yes, the Film Heat Shrink Tester is designed to comply with ASTM D2732 standards, ensuring that your testing methods are in line with industry requirements.

What are the benefits of automating the heat shrinkage testing process?

Automation improves efficiency, reduces human error, and allows for continuous monitoring and data logging, making the testing process more reliable and streamlined.

Is it possible to customize the Film Heat Shrink Tester for specific testing needs?

– Absolutely, Cell Instruments offers customization services to tailor the tester to specific requirements, including special sample holders and custom temperature ranges.

Related Article

Film Heat Shrink Tester

ASTM D2732 Shrinkage Films Testing

Film Shrinkage Tester for Plastic Packaging

Thermal Shrinkage Tester for Plastic Film


ASTM D2732

Shopping Cart