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Melting point range of TPU hot melt adhesive film
​The melting point range of TPU hot melt adhesive film is a type of high-temperature hot melt adhesive film, which usually ranges from 100 ℃ to 200 ℃. The main component of TPU hot melt adhesive film is polyurethane, which has advantages such as high bonding strength, high temperature resistance, and solvent resistance. Therefore, it is widely used in fields such as automobiles, electronics, packaging, and construction.
2023-11-15
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Melting point range of TPU hot melt adhesive film

    The melting point range of TPU hot melt adhesive film is a type of high-temperature hot melt adhesive film, which usually ranges from 100 ℃ to 200 ℃. The main component of TPU hot melt adhesive film is polyurethane, which has advantages such as high bonding strength, high temperature resistance, and solvent resistance. Therefore, it is widely used in fields such as automobiles, electronics, packaging, and construction.

    When producing TPU hot melt adhesive film, the melting point range can be adjusted by changing the raw material formula, production process, and other conditions. Generally speaking, increasing the melting point of TPU hot melt adhesive film can increase its bonding strength and high-temperature resistance, but it also increases production costs. Therefore, when selecting TPU hot melt adhesive film, it is necessary to choose the appropriate melting point range based on specific application scenarios and requirements.

    In addition to the melting point range, TPU hot melt adhesive film also has other important performance indicators, such as adhesive strength, high-temperature resistance, solvent resistance, etc. These performance indicators can be evaluated through experimental testing, such as bonding strength testing and high-temperature resistance testing in the laboratory. At the same time, the production process of TPU hot melt adhesive film is also very important, including raw material ratio, production process, etc., which will affect the performance and quality of the final product.

    In summary, TPU hot melt adhesive film is an important adhesive material, and its melting point range and other performance indicators have a significant impact on practical applications. When selecting and using TPU hot melt adhesive film, it is necessary to fully consider its performance characteristics and application scenarios to ensure that it can meet practical needs and play the maximum role.

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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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