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What is the difference between high and low temperature TPU hot melt adhesive film?
What is the difference between high and low temperature TPU hot melt adhesive film? TPU hot melt adhesive film is a high-performance adhesive. It is made of TPU material and has the advantages of high viscosity, high temperature resistance, and low temperature resistance. This adhesive film can be used for bonding various materials, such as plastic, metal, glass, etc. The difference between high and low temperature TPU hot melt adhesive films is mainly reflected in the following aspects:
2023-10-31
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What is the difference between high and low temperature TPU hot melt adhesive film?

    TPU hot melt adhesive film is a high-performance adhesive. It is made of TPU material and has the advantages of high viscosity, high temperature resistance, and low temperature resistance. This adhesive film can be used for bonding various materials, such as plastic, metal, glass, etc.

    The difference between high and low temperature TPU hot melt adhesive films is mainly reflected in the following aspects:

    1. Different temperature resistance properties

    At high temperatures, TPU hot melt adhesive film can maintain high viscosity and stability, while at low temperatures, it can still show good performance. Therefore, when choosing to use TPU hot melt adhesive film, you need to make a choice based on the actual situation.

    2. Different viscosity

    High-temperature TPU hot melt adhesive films have higher viscosity and can bond more materials, while low-temperature TPU hot melt adhesive films have relatively low viscosity. Therefore, when a variety of materials need to be bonded, it is more suitable to use high-temperature TPU hot melt adhesive film.

    3. Different weather resistance

    High-temperature TPU hot melt adhesive film has better weather resistance and can maintain stable performance in various environments, while low-temperature TPU hot melt adhesive film may be greatly affected by environmental factors.

    4. Different application fields

    In high-temperature environments, we can apply high-temperature TPU hot melt adhesive films in automobiles, aerospace and other fields. In low-temperature environments, we can choose low-temperature TPU hot melt adhesive films to apply to medical, electronics and other fields.

    In short, high and low temperature TPU hot melt adhesive film are different in performance and application, and the selection needs to be considered based on the specific situation. At the same time, pay attention to the correct operating methods and related matters during use to ensure that its performance can be fully utilized.

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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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