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Dongguan Green TPU Co.,Ltd.
14year TPU film/TPU hot melt adhesive film custom manufacturer
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Will TPU hot melt adhesive film melt in summer?
Recently, I have often received some customers asking whether the TPU hot melt adhesive film will melt in summer? I believe that these customers who asked questions have basically been exposed to TPU hot melt adhesive film​, but they do not know much about it. The following is the answer to your doubts by GreenTPU TPU hot melt adhesive film!
2022-05-16
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Will TPU hot melt adhesive film melt in summer?

Recently, I have often received some customers asking whether the TPU hot melt adhesive film will melt in summer? I believe that these customers who asked questions have basically been exposed to TPU hot melt adhesive film, but they do not know much about it. The following is the answer to your doubts by GreenTPU TPU hot melt adhesive film!

TPU hot melt adhesive film can be a very stable solid at room temperature without adhesiveness! The condition for generating adhesive force is to heat it, and when it reaches the corresponding temperature and melting point, it will melt to achieve the effect of bonding the product.

It is in this case that the TPU hot melt adhesive film needs to be heated and melted, so some customers will worry that the summer will cause the TPU hot melt adhesive film to melt. The editor of GreenTPU can tell you for sure that the TPU hot melt adhesive film will not melt because of the heat in summer. The melting of TPU hot melt adhesive film will only melt after heating to the corresponding temperature. The melting point of TPU hot melt adhesive film is generally above 90 degrees, and the lower melting point is 80 degrees. Although it is hot and sultry in summer, it is far from the temperature that makes the TPU hot melt adhesive film melt.

In addition to worrying about whether the TPU hot melt adhesive film will melt due to the weather in summer, whether it will affect the adhesion of the TPU hot melt adhesive film in summer is also a big concern for many customers. Customers who do not know TPU hot melt adhesive film are prone to have such questions: even if the high temperature in summer does not reach the melting temperature of TPU hot melt adhesive film, the temperature is still very high, will it affect the stability of TPU hot melt adhesive film?

TPU hot melt adhesive film does not have to worry about its stability in summer. Conventional TPU hot melt adhesive films need to have high temperature resistance and low temperature resistance. High temperature in summer or low temperature in winter will not affect the stability of TPU hot melt adhesive film.

From the perspective of TPU hot melt adhesive film manufacturers, we can think of the problems that customers can think of, which need to be solved and tested during product development. If the high temperature in summer and the low temperature in winter have a certain impact on the stability of TPU hot melt adhesive film, it can only mean that the processing technology of hot melt adhesive film is not mature and cannot be promoted to the market.

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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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