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What is the combination of TPU film + PET film?
​The combination of TPU film and PET film is a functional material combination formed through a composite process. It combines the advantageous characteristics of the two materials and plays an important role in multiple fields.
2025-07-14
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What is the combination of TPU film + PET film?

    The combination of TPU film and PET film is a functional material combination formed through a composite process. It combines the advantageous characteristics of the two materials and plays an important role in multiple fields.

    TPU film, namely thermoplastic polyurethane film, has excellent elasticity and flexibility, and can quickly return to its original state after stretching. It also has good wear resistance, low temperature resistance and chemical corrosion resistance, and is environmentally friendly and recyclable. The PET film is a polyethylene terephthalate film, which has excellent mechanical strength, high temperature resistance and dimensional stability, a flat and smooth surface, good barrier performance and high light transmittance.

    Combining the two together can achieve complementary and improvement of performance. The elasticity of the TPU film can make up for the shortcomings of insufficient flexibility of the PET film, making the combined material less likely to break when impacted by external forces; while the high strength and stability of the PET film can enhance the structural support of the TPU film and enhance the tensile and tear resistance of the overall material. This combination can also take into account good barrier properties and elasticity. In the packaging field, it can effectively block water vapor and oxygen, protect internal items, and adapt to the packaging needs of items of different shapes.

    In terms of application scenarios, the combined material is widely used. In the medical field, it can be used to make infusion bags, blood bags, etc., and its good chemical resistance and flexibility can be used to ensure safety in use; in the electronic field, it can be used as a packaging material or protective film for electronic components to play a barrier and buffering role; in the daily necessities field, such as making waterproof and breathable clothing fabrics, coatings for outdoor products, etc., it can all reflect its comprehensive performance advantages.

    In short, the combination of TPU film and PET film is a powerful combination of materials innovations, providing superior performance solutions for various industries.

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TPU hot melt adhesive film vs anaerobic adhesive: "Scene flexibility" difference in automotive interior bonding
2025-09-11
​From the perspective of curing conditions, TPU hot melt adhesive film does not need to rely on special environments, while anaerobic adhesives are severely restricted by "auerobicity". The curing principle of anaerobic glue is to undergo polymerization under conditions of lack of oxygen and catalyzed by metal ions (such as iron and copper). If it is in an environment where air circulation or metal substrates are not available, the curing speed will be greatly slowed down or even unable to cure. In automotive interiors, most bonding scenarios are "open" (such as bonding the door panel skin to PP substrate, and the ceiling fabric to the sponge), the air can freely contact the bonding surface, and the substrate is mostly non-metallic (PP, ABS, fabric, etc.), lacking metal ion catalysis, and additional catalyst is required when using anaerobic glue, and the curing time is as long as several hours, which is difficult to meet the needs of industrial production. The TPU hot melt adhesive film only needs to be melted by heating (120-160℃) and can be cured after pressurization and cooling. It does not need to rely on the ambient oxygen concentration or the base material. It can be cured stably in open or closed bonding scenarios, and the curing time only takes a few dozen seconds to a few minutes, adapting to the fast-paced needs of the interior production line.
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