What is Mil Strength?
A "MIL" is one thousandth of an inch and measures the thickness of the bag. The higher the MIL strength, the more your bag can hold.
- 1 MIL
Lightweight, great for temporary storage.
- 2 MIL
Most popular thickness, used for shipping light parts, clothing or protecting food.
- 3 MIL
Offers added protection, used for document storage, healthcare, restaurants, and kit manufacturers.
- 4 MIL
Offers heavier protection, used for items such as industrial parts and hardware.
- 6 MIL
Very strong, protects against punctures and tears, used for parts, gears and heavy metal objects.
How to Measure Zipper Bags
Reclosable "Zipper" Bags
Width (W) x Length (L)
Zipper bag measurement does not include the zipper and lip.