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How to easily test flexible packaging film seal using Presto heat sealer?

heat Sealer is a highly advanced testing instrument that is used to seal flexible packaging products, and other thermoplastic materials. This testing instrument is used in testing laboratories for various research and analysis purposes. It is capable of creating very high temperatures for testing and studying the effect on different thermoplastic materials that are used in plastic and packaging industries and other industrial laboratories. It is a tabletop model with a robust design that can efficiently work in harsh working conditions too.

This heat sealing testing instrument is mainly used in packaging industries and industrial laboratories for the purpose of sealing one thermoplastic to another or similar thermoplastic using heat and pressure.

The direct contact method of heat sealing utilizes a constantly heated die or sealing bar to apply heat to a specific contact area or path to seal or weld the thermoplastics together. Heat sealing is used for many applications, including heat seal connectors, thermally activated adhesives, film media, plastic ports, or foil sealing. Here in this blog, we are going to discuss how you can easily commence the test using the Presto heat seal tester. So, let us get started!

Steps to easily commence the test using Presto heat sealer

The heat sealer prima is one of the ideal testing instruments for sealing the strength of packets. It is mostly used to assess the strength of thermostatic materials by the application of pressure. It will also aid in the preservation of heat by keeping the greatest temperature possible. As a result, analyzing the quality will allow you to assess the thermal performance of the packing material.

This testing instrument will comprise a sealing bar which will continuously be made in accordance to test standards like ASTM F2029. Whenever you buy this lab testing equipment, then you should keep several factors in mind while selecting the lab heat sealer.

Below we have mentioned the steps to easily commence the test using this lab testing equipment.

  • After placing the specimen between the jaws press the push button or footswitch to move the jaw.
  • The specimen placed between two heated jaws in close contact helps to create a bond between two pieces of the specimen to seal the samples.
  • The PID display will show an increase in temperature.
  • After completion of pre-set time, the upper sealer will go back to its home position.
  • Take out the specimen and analyze the changes in the physical properties of the specimen.

In this way, you can easily commence the test using this lab testing equipment. Now, let us focus on the features and technical specifications of this lab testing equipment.

Features of Presto lab heat sealer

This lab testing equipment is helpful in ensuring the high strength of flex packaging by testing the material at high temperatures and pressure. You can read more on how this lab testing equipment is useful in ensuring the high-strength seal of flex packaging material. Below we have listed the features you will get with the heat seal tester.

  • Three jaws of different patterns are available plain, diamond knurling, and straight line.
  • The temperature of the heaters is adjustable.
  • It is feasible to adjust the temperature of both the heaters of the machine individually.
  • The machine is incorporated with an imported P.I.D. temperature controller.
  • The dwell time of the machine can be adjusted from 0.1 – to 99.9 sec seconds.
  • It has a microprocessor-based digital display.

Technical Specifications of Presto heat seal tester

  • Equipment Range: Ambient to 350ºC
  • Sealing Temperature Working range: Ambient to 230ºC
  • Accuracy: ± 1ºC
  • Least Count/Resolution: 0.1ºC
  • Power: 220V, Single phase, 50 Hz
  • Sealing size: 150x 15 mm OR 300x 15 mm
  • Temperature Controller: 4 digit PID
  • Dwell Heat Seal time: 0.1 – 99.9 sec
  • Timer: 4 Digit Digital
  • Heat Sensor: Pt-100, Platinum Resistance Temperature
  • Sealing Pressure: 2 – 6 Bar

With these features and technical specifications, it will be easy for you to conduct the test. This testing equipment will also be helpful in testing the heat seal strength of ionomer films as per ASTM F2029. We at Presto are considered to be the leading manufacturers of heat seal tester prima models and provide the best price for this testing equipment. You can easily give us a call at +91-9210903903 or email us at Our team of technical experts will easily assist you with all your queries.

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