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At what temperature does TPU hot melt adhesive film melt and bond better
​Changes in temperature and humidity will cause different changes in the TPU hot melt adhesive film, because some of the raw materials used, such as ink and glue, will change color due to humidity during its production, which cannot meet the requirements for accurate color. Therefore, the requirements for the factory building during production need to be strictly controlled.
2022-12-02
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At what temperature does TPU hot melt adhesive film melt and bond better

    Changes in temperature and humidity will cause different changes in the TPU hot melt adhesive film, because some of the raw materials used, such as ink and glue, will change color due to humidity during its production, which cannot meet the requirements for accurate color. Therefore, the requirements for the factory building during production need to be strictly controlled.

    TPU hot melt adhesive film is mainly used to replace the sewing process of some parts in sports and outdoor clothing, so that the bonding point is not raised, and it is more comfortable to wear. TPU hot melt adhesive film is also used on the zipper of outdoor assault suit to play a good waterproof role.

    To put it simply, the temperature adjustment of the composite equipment at what temperature can make the adhesion of TPU hot melt adhesive film to materials reach the ideal state. Of course, this temperature value must be the temperature resistance requirement of the material, otherwise the material will be damaged due to high temperature.

   TPU hot melt adhesive film is widely used, and the materials that can be bonded include but are not limited to all kinds of textiles, leather, TPU sponge and rubber materials.

    It can be applied to the bonding of automotive interior, clothing, footwear, and other industries.

    For specific bonding of different materials and purposes, which specification of TPU hot melt adhesive film should be selected? Contact us. We can provide product selection application guidance, quotation, free samples and other services.

    The temperature at which the TPU hot melt adhesive film is melted and bonded is better. The key point is to see the temperature resistance value of the bonded material, and then select and determine the type of TPU hot melt adhesive film to be used according to the requirements of material compatibility. Through these two dimensions, you can basically determine which type of TPU hot melt adhesive film to use. The next thing to do is actually to sample!

    TPU hot melt adhesive film is melted and bonded better depends on the temperature resistance value of the bonded material, and then the type of hot-melt adhesive film used is selected according to the requirements of material compatibility. Through these two dimensions, you can basically determine which type of hot-melt adhesive film to use. The next thing to do is actually proofing test!

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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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