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Dongguan Green TPU Co.,Ltd.
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Many customers report that TPU hot melt adhesive film cannot be bonded
​The main component of TPU hot melt adhesive film is thermosetting polyurethane material, which is produced by heating and melting, lamination, hot melt adhesive coating and other processes. TPU hot melt adhesive film​ is an environmentally friendly adhesive, which meets the perfect pursuit of safety and harmlessness in the field of decoration, which is beyond the reach of traditional super glue.
2022-10-24
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Many customers report that TPU hot melt adhesive film cannot be bonded

    The main component of TPU hot melt adhesive film is thermosetting polyurethane material, which is produced by heating and melting, lamination, hot melt adhesive coating and other processes. TPU hot melt adhesive film is an environmentally friendly adhesive, which meets the perfect pursuit of safety and harmlessness in the field of decoration, which is beyond the reach of traditional super glue.

    Recently, many customers reported that TPU hot melt adhesive film could not be bonded. Many customers are new to products such as TPU hot melt adhesive film, and they may not be familiar with the application method. The application methods are limited to words, they have not actually been manipulated. Therefore, there may be reasons such as insufficient operating pressure, too low temperature, and insufficient operating time, resulting in the phenomenon that the TPU hot melt adhesive film is not completely melted and cannot be bonded. Some customers can accept low viscosity products because they want to maximize cost savings. In fact, this idea is wrong. If only inferior products have poor viscosity, then heavier products can also be used to make up for this deficiency. The application of weak adhesion is mainly product instability. Therefore, when choosing TPU hot melt adhesive film, be sure to find a large TPU hot melt adhesive film factory to cooperate, so that TPU hot melt adhesive film products will be guaranteed!

    TPU hot melt adhesive film is a kind of hot melt adhesive film that is widely used at present, and its application in the market is very mature. Now the mainstream brands of bags and shoes we use in our daily life basically use TPU hot melt adhesive film, which is an environmentally friendly adhesive product. When large merchants choose TPU hot melt adhesive film products, they should not blindly pursue low prices, but also consider the risks of inferior products that low prices may bring. TPU hot melt adhesive film is not far from you, just by your side.

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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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