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Seal Strength Tester


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Seal Strength Tester

Seal strength testing evaluates the mechanical strength of the seal, assuring proper bonding to maintain package integrity throughout the life of the package. Here we address two basic typle of seal strength testing: tensile strength testing (ASTM F88) and burst or crepp testing (ASTM F1140 & ASTM F2054)


Tensile Seal Strength Testing - Tensile Strength Testers

One-inch wide samples are cut perpendicular to the seal and pulled apart at a constant speed (usually 12 inches/minute) when mounted in the grippers of the instrument. The force required to separate the two sealed substrates is measured and reported as x lbs/inch width.

  • ASTM F88 -- Standard Test Method for Seal Strength of Flexible Barrier Materials


Burst and Creep Testing - LSSD-01 Leak and Seal Strength Detector

  • Burst Test: Fill the package with air until it bursts and measuring the terminal pressure.The method can be used with the package unrestrained or within restraining plastes to simulate packages stressed in various situations.
  • Creep Test: Inflate the package to a constant pressure and then check if the pressure in the package can hold a specific time. the suggested pressure in


ASTM F1140 is about 80% of burst pressure.

ASTM F1140 -- Standard Test Methods for Internal Pressurization Failure Resistance of Unrestrained Packages for Medical Applications

ASTM F2054 -- Standard Test Method for Burst Testing of Flexible Package Seals Using Internal Air Pressurization within Restraining Plates

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i-Leaktek 6600 is designed for  the seal strength and seal performance of various heat sealed flexible packages, sterilized packages and pilfer-proof closures. Leak characteristics of packages can be measured too.


This leakage tester/seal strength tester conforms to various national standards and international standards:
ASTM F1140, ASTM F2054, ISO 11607-1, ISO 11607-2, GB/T 10440-2008, GB 18454, GB 19741, GB 17447, GB/T 17876, GB/T 10004, BB/T 0025, QB/T 1871, YBB 00252005, YBB 00162002


Professional Functionality

  • Positive pressure method and two testing modes including restrained inflation and unrestrained inflation

  • Standard test methods including Burst Test, Creep Test and Creep-to-Failure Test

  • Two test ranges are available, which can maximally be extended to 1.6 MPa and meet the requirements of different materials

  • Various accessories for package testing both qualitatively and quantitatively

  • Display test parameters and test results in multiple units

High-end Design

  • Embedded computer control system provides safer and more reliable data management as well as test operation.

  • The instrument can be easily operated with a mouse, a keyboard, and a monitor, without requiring a PC.

  • The instrument is equipped with four USB ports and dual Internet ports for convenient data transmission.

  • Universal power input for easy access

Intelligent Software

  • Interface: Windows-based operating interface

  • Statistics: easy calculation for historical results, instrument usage, energy consumption, and large statistical information

  • Data Comparison: by presetting target value and range, the system automatically generates data comparison after each test and intelligently judges whether the specimen passes or fails the test

  • Test Report: can provide detailed test reports in various customized patterns

  • User Management: multi-level account management for better data management and protection

  • Operation Log: system automatically records all the operations by the user, which is easy to review

  • The instrument supports Labthink’s exclusive DataShieldTM Note3(Optional), which can provide the users with reliable management of test data and test reports.

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