A 'mil' is one-thousandth of an inch, so 4 mils = 4/1000 of an inch. Improve answer ... A 4 mil thickness is four thousandths (0.004) of an inch. How thick is a mil?
Thickness. Thousandth of an Inch. Thickness. Best For … ½ mil .0005”. ¾ mil . 00075”. Short-term use for lightweight products. A grocery store bag is ½ mil. A dry.
Hello, This may sound like a newbie question but thats okay cause I just received my powder coating kit and in fact I am a newbie. My question ...