Plastic film heatseal tester evaluates the heatsealability of a surface, sealant layer of films, laminates, composites and polymers etc. The heatsealability is expressed quantitatively as seal strength as a function of the sealing conditions of temperature, time and pressure.

Plastic film heatseal tester Principle

Place a sample between two parallel heated sealing jaws with flat surfaces. When the required temperature reaches equilibrium, the upper seal jaw, driven by a gas cylinder, is pushed down to exert a certain pressure on the sample and remain for some time. When the preset sealing time ends, the upper sealing jaw returns to its original position and the whole heatsealability testing process finishes.

The heatsealability can be further analyzed by seal continuity, typically measured by air-leak, dye penetration, visual examination, microorganism penetration or other technique.

Technical specifications

Sealing temperature     Room Temperature ~ 300℃

Deviation             ±0.2℃

Dwell time                0.1 s~9999s

Sealing pressure          0.15 MPa ~ 0.7 MPa

Sealing Jaws            330mm×10mm(Sealing Surface)(Customization Available)

Double Heating of Upper and Lower Jaws

Gas Pressure           0.7 MPa of Air

Dimensions              455mm (L) *320mm (W) *440mm (H)

Port Size              Ф6 mm PU Hose

Power                   AC 220V 50Hz

Plastic film heatseal tester Standard

ASTM F2029