Film Shrink Tester

The Hanatek film shrink tester, has been designed to quickly and easily measure the effect of temperature on plastic film.

The shrink effect is due to internal forces locked into the film during manufacture being released by heating.

It is also know as linear themal shrink or free shrink.


  • Determines quality of cast and blown films
  • Measures unrestrained film shrinkage
  • Easy to use
  • Fast efficient testing
  • Easy determination of percentage film shrink


Standards ANSI/ASTM D 2732-03
Display LCD with set point and actual temperature reading
Temperature range 40-200° C (Accuracy +/- 0.3 ° C)
Timer Lapse timer with alarm, registers overshoot
Weight 2.5kg
Size (H)120 x (W)300 x (D)270mm


Applications include:

  • Cling film
  • Blown film
  • Shrink wrap

Why is film shrinkage important?

Film shrinkage is important to industry as blown films are often heat treated to form protective packaging for perishable food or manufactured products.

Blown plastic films contract when heated, this effect is used to seal or protect food or industrial products. In contrast a film that exhibits too much shrinkage may distort a product or form a weak functional barrier. 

The Hanatek film shrink tester is used to measure the effect of temperature on blown films.