Mil is a US engineering term for 1/1000th of an inch (from French mille for one thousand). Thus, 9 mil paper is 0.009 inch or about 0.23 mm thick. Doesn't sound like much, but newspaper and typing paper run about 2.5-3.5 mils. Photo paper used in 1-hour labs is about 8.5 mils thick.
Keeping this in consideration, what is thicker 3 mil or 5 mil?
Laminating pouch film thickness is measured in thousands of an inch, referred to as mil. The higher the mil, the thicker and more rigid the laminating will turn out. Pouch films generally come in 1.5 mil, 3 mil, 4 mil, 5 mil, 7 mil, and 10 mil.
What is thicker 20 mil or 25 mil?
The most common term for vinyl, “mil” (not to be confused with millimeter) is a unit of measurement equal to one thousandth of an inch. Therefore, a 20 mil liner thickness is equal to 20 thousandths of an inch. The term “gauge” (not to be confused with mil), is a bit more of a moving target.
What mil plastic to use for greenhouse?
One-year co-poly film is available in 3, 4 and 6 mil thickness. Three or 4 mil film is common for one year use on narrow tunnels and overwintering houses. Greenhouse grade material, only available in 6 mil thickness, is best for multi-year applications.