Polythene film packaging guide

Selecting polythene film

Film thickness guide
Light duty film thickness
  • Very clear and has a glossy finish.
  • Ranges between 100 and 120 gauge (25 and 30 microns).
  • Predominantly used for keeping items clean and dust free.
  • Poor for sharp or heavy objects.
  • Good for clothes, papers, buttons etc.
Medium duty film thickness
  • Between 200 and 250 gauge (50 and 62 micron).
  • Clear and glossy.
  • A thicker film that is easy to work with.
Heavy duty film thickness
  • Between 400 and 500 gauge (100 and 125 micron).
  • Suitable for weights up to 20 kgs.

Polythene film thickness conversion

Plastic sheeting, tubing and bags are measured by their thickness and is expressed in gauge (imperial) or microns (metric).

Gauge relates to thickness. Each 100 gauge is 1 thousandth of an inch.

Microns are thousandths of a millimeter.

Gauge can also be related to microns by dividing the gauge by 4.

Gauge thickness conversion chart
GaugeMicronMillimeterInch
307.60.00760.0003
40100.01010.0004
5012.50.01270.0005
60150.01520.0006
75190.01900.0007
80200.02030.0008
90230.02280.0009
100250.02540.0010
120300.03040.0012
150380.03800.0015
160400.04060.0016
180450.04570.0018
200500.05080.0020
Polythene film thickness conversion last updated: Nov-2021

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