Helpful Formulas
Mils vs. Microns
- Mil – A unit of measurement in thousandths of an inch. (i.e., .001 = one thousandth of an inch or 1.0 mil). Generally used to designate the thickness of LLDPE products.
- Mic – Short for micron, one thousandth of a millimeter. Generally used to designate the thickness of HDPE products.
For the EXACT conversion:
- Mils to Microns: (Number of Mils) x 25.4 (i.e., .75 mil = 19 microns).
- Microns to Mils: (Number of Microns) / 25.4 (i.e., 14 microns = .55 mil).
For the APPROXIMATE strength equivalents:
LLDPE & Blends | HDPE |
.4 – .45 mil .6 – .75 mil .75 – .95 mil .95 – 1.1 mil 1.1 – 1.5 mil 1.5 – 1.8 mil Premium Super-Hexene |
6 micron 8 – 10 micron 10 – 13 micron 13 – 16 micron 16 – 18 micron 16 – 25 micron no comparable equivalent |
Formula for determining proper bag size:
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For a round receptacle: Width of bag required = Diameter of receptacle x 3.14 / 2 (Diameter = the distance across the top of the receptacle) Length of bag required = 1/2 of the diameter + height of receptacle + 4″ to 6″ for overhang |
For a square or rectangle receptacle: Width of bag required = Length of two sides Length of bag required = 1/2 the smallest side + height of receptacle + 4″ to 6″ for overhang |