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2. Plastic film - Wikipedia

   en.wikipedia.org/wiki/Plastic_film

   Film strip (photographic film) 6 mil polyethylene plastic sheet as vapor barrier in construction Confectionery packaging made of PLA-blend bio-flex bioplastic Shrink-wrapped OH-58 Kiowa helicopters to be shipped. Plastic film is a thin continuous polymeric material. Thicker plastic material is often called a "sheet".

3. Calender - Wikipedia

   en.wikipedia.org/wiki/Calender

   Calender process Calender at end of paper machine Old calender machine Threading paper through calender rolls, 1941 Calender machine for electrode pressing in lithium-ion battery manufacturing A calender is a series of hard pressure rollers used to finish or smooth a sheet of material such as paper , textiles , rubber , or plastics.

4. Vapor barrier - Wikipedia

   en.wikipedia.org/wiki/Vapor_barrier

   Polyethylene plastic sheet, 4 or 6 thou (0.10 or 0.15 mm), 0.03 US perm (1.7 SI perm). Advanced Polyethylene vapor retarders that pass the ASTM E 1745 standard tests ≤0.3 US perm (17 SI perm). Asphalt-coated kraft paper, often attached to one side of fiberglass batts, 0.40 US perm (22 SI perm). Metallized film

5. Thousandth of an inch - Wikipedia

   en.wikipedia.org/wiki/Thousandth_of_an_inch

   The thou, or mil, is most commonly used in engineering and manufacturing in non-metric countries. For example, in specifying: The thickness of items such as paper, film, foil, wires, paint coatings, latex gloves, plastic sheeting, and fibers For example, most plastic ID cards are about 30 thou (0.76 mm) in thickness.

6. Linear low-density polyethylene - Wikipedia

   en.wikipedia.org/.../Linear_low-density_polyethylene

   LLDPE has penetrated almost all traditional markets for polyethylene; it is used for plastic bags and sheets (where it allows using lower thickness than comparable LDPE), plastic wrap, stretch wrap, pouches, toys, covers, lids, pipes, buckets and containers, covering of cables, geomembranes, [1] and mainly flexible tubing. In 2013, the world ...

7. High-density polyethylene - Wikipedia

   en.wikipedia.org/wiki/High-density_polyethylene

   HDPE is known for its high strength-to-density ratio. [4] The density of HDPE ranges from 930 to 970 kg/m 3. [5] Although the density of HDPE is only marginally higher than that of low-density polyethylene, HDPE has little branching, giving it stronger intermolecular forces and tensile strength (38 MPa versus 21 MPa) than LDPE. [6]