Here are some more information for Clear Cover:

Understanding the Different Weights of Binding Cover Stocks

Our sales staff at MyBinding.com are commonly asked about the thicknesses of the binding covers that we carry on our site. Unfortunately, understanding the way that cover stocks are measured can be somewhat tricky since several different measuring standards are used. This article is designed to give you a quick overview of the different measuring standards used for the cover stocks that we carry.

* Most of the clear binding covers and poly binding covers available from MyBinding.com are measured in Mil’s (also sometimes referred to as gauge). At first glance, it might appear that this is a measurement in millimeters. However, one mil actually equals 0.001 inch. Thus a 10mil clear cover has a caliper measurement of 0.010 inches and a 19mil poly cover has a caliper measurement of 0.019 inches.

* The regency composition / leatherette covers that we carry are measured in points rather than mils. For instance, most of the regency composition / leatherette covers that we carry are rated as 17pt covers. Each point is equal to 0.001 inches (the same as mil’s or gauge). Thus the 17pt covers that we carry have a caliper measurement of approximately 0.017 inches.

* Most of the paper covers that we carry are measured in weights. For instance, GBC’s linen weave paper covers are made from 80lb cover stock. This measurement is the actual weight of 500 master sheets (25” x 38” in size for cover stocks). Depending on the type of paper you are using the weight is based on different master sheet sizes making it very difficult to compare weights of bond paper with offset paper or index stock with cover stock. However, to give you an idea, 80lb cover stock is approximately equivalent to 9.5 Mils, 90lb cover stock is approximately equivalent to 10 Mils and 100lb cover stock is approximately equivalent to 11 Mils.

About the Author

Jeff McRitchie is the director of marketing for MyBinding.com. He writes extensively on topics related to Binding Machines, Binding Supplies,Binding Covers, Binders, Index Tabs, Laminators, Laminating Supplies and more.

When I was little i had to cover my glasses with clear contact why was that?

I have been wearing glasses since I was 18 months old (now 14) and since I got them until I was 3 years old I had to put clear contact over them (the stuff you cover school books with) I am wondering why that is and would it help my eyes if I did it now- they have not improved since

Maybe putting that stuff on was to help keep the lenses from getting scratched? The clear stuff takes the abuse, then you peel it off and replace.

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