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Almost all of our bags, sheeting and tubing listings are titled with the dimensions, including the "mil" thickness. Although this is the way packaging professionals have always described the thickness of poly film and bags, it is not a familiar term to many new buyers.
The term "mil" is used to describe thickness in thousandths of an inch. In other words, "1 mil" is one thousandth of an inch, 3.5 mil is three and a half thousandths of an inch.
Mil thickness can also be written numerically. One may write 1 mil as ".001" or 2 3/4 mil as ".00275" etc. No one method is more or less correct than another, but we define our products' thickness in the way people typically verbalize it.
How thick is a mil?
It is difficult to visualize a measurement so thin if one is not familiar with its touch and feel. A good way to get an example of the thickness is to check out the typical household items you may have on hand, such as trash bags, sandwich bags or zipper bags.
While your household items may give you an idea of the feel of a particular gauge (another word commonly used for thickness), the raw material will have a significant impact on the strength. In other words, all 2 mil bags are not created equal. Use your household items to determine the thickness you need to accomplish strength for a particular application and you could make a big mistake.
Your best bet is to contact us via live chat, phone or email to get expert advice on what thickness will suit your needs best. Sometimes we aren't sure, and that's why we offer free samples for you to try before you make a decision about what to buy. We're here to make sure you get the best possible package for your application.