manufacturer introduces knowledge of tpu film thickness

the quality of tpu film is closely related to its thickness, but the thickness error of tpu films currently produced on the market is still very large. today i will talk to you about the thickness of tpu films.

since the ratio of raw materials and reaction temperature of tpu films are difficult to control, many customers are dissatisfied and complain about the thickness error of tpu film products. however, the thickness of tpu films is indeed difficult to accurately control!

since tpu film manufacturers are elastomers, after drying and dehumidification, they are kneaded and matured by screws, and then the film is extruded through a die. any factors in between, including instability of the raw materials, may cause uneven film thickness.

the thickness is 0.012-0.025mm, the thinner it is, the more breathable it is. of course, the thicker the water pressure, the higher the pressure. moisture permeability is a very complicated issue because the testing methods are different. in layman’s terms, the industry uses the astm inverted cup method, which is the 2005 version. the medium permeability is around 3000-5000. if it exceeds 5000, it can basically be considered as high permeability. .

generally speaking, the industry says that it is normal for a 10-wire tpu film to have a thickness tolerance of plus or minus 1 wire (0.01mm). of course, this is also related to the thickness of the film. the thinner the tpu film, the smaller the thickness tolerance it can accept.

tpu film is a functional film with the characteristics of high strength, good toughness, cold resistance, oil resistance, aging resistance, weather resistance, environmental protection, non-toxic, and decomposable. unmatched by other plastic materials. at the same time, tpu membrane has many excellent functions such as high waterproof, wind resistance, cold resistance, antibacterial, warmth retention, uv resistance, and energy release, and is widely used in various fields. high resilience (elongation 300%-600% without deformation), high wear resistance, cold resistance (physical properties remain unchanged from -40 to -70), hydrolysis resistance, high and low temperature resistance, flex resistance, mildew proof, antibacterial, and waterproof , moisture-permeable, environmentally friendly (recyclable, decomposable), and has now widely replaced pvc products.