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Dongguan Green TPU Co.,Ltd.
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TPU hot melt adhesive film has developed rapidly in recent years
​Due to the rapid progress of science and technology, TPU hot melt adhesive film has also developed rapidly in recent years, and also has some characteristics of ordinary TPU film, which makes its application range wider. TPU hot melt adhesive film is a kind of hot glue, which is completely different from our common liquid glue, transparent tape, self-adhesive, glass glue and 502 glue.
2022-06-27
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TPU hot melt adhesive film has developed rapidly in recent years

    Due to the rapid progress of science and technology, TPU hot melt adhesive film has also developed rapidly in recent years, and also has some characteristics of ordinary TPU film, which makes its application range wider. TPU hot melt adhesive film is a kind of hot glue, which is completely different from our common liquid glue, transparent tape, self-adhesive, glass glue and 502 glue. It is a non-tacky stable solid at room temperature, which can be melted when heated to a certain temperature, and then thermocompressed or compounded! Compared with traditional liquid adhesives, TPU hot melt adhesive film composite products have better bonding effect, which can solve the odor and environmental protection problems of products in production and processing.

    The working principle of TPU hot melt adhesive film is to heat it at high temperature to melt it. When it changes from a solid state to a viscous liquid state, the liquid glue infiltrates the surface of the object to be adhered while applying a certain pressure. After the hot melt adhesive is cold-cured, a cohesive force is created to firmly bond the two materials. So far, TPU hot melt adhesive film has completed its mission.

    Compared with hot melt adhesive films of other materials, TPU hot melt adhesive film has a softer touch under the same thickness, so it is especially suitable for lamination and bonding of textile fabrics in the apparel field. The fabric bonded by TPU hot melt adhesive film is very comfortable to wear, and it is not easy to feel plastic or uncomfortable.

    The application of TPU hot melt adhesive film in the market is now very mature. The bags and shoes we use in our daily life, mainstream brands now basically use hot melt adhesive film, which is an environmentally friendly adhesive product for bonding. Whether it is TPU hot-melt adhesive film or hot-melt adhesive film of other materials, it is an environmentally friendly adhesive. It is a better choice for today's social composite industry, and it also meets people's pursuit of environmental protection and health. It is believed that in the future, more composite fields will choose TPU hot melt adhesive film as a suitable adhesive.

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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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