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Dongguan Green TPU Co.,Ltd.
15year TPU film/TPU hot melt adhesive film custom manufacturer
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​TPU hot melt adhesive film can play its powerful bonding role in industries closely related to our life, such as clothing, shoes, daily necessities, or food packaging, sports equipment and medical supplies.
2023-01-30
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The difference between TPU hot melt adhesive film and TPU film

    TPU hot melt adhesive film can play its powerful bonding role in industries closely related to our life, such as clothing, shoes, daily necessities, or food packaging, sports equipment and medical supplies.

    TPU hot melt adhesive films have different melting points, different types, and different properties, mainly due to the different properties of the TPU hot melt adhesive film material. TPU hot melt adhesive films are made of TPU, which is a thermoplastic polyurethane polymer compound. This material has a special characteristic that it has different melting points, and different melting points show different performance characteristics.

    TPU hot melt adhesive film has medium and high melting point, low temperature melting pointTPU hot melt adhesive film at 70 ℃, medium temperature at 110 ℃, high temperature at 150 ℃, their use temperature is basically on the basis of the melting point temperature plus 30 ℃ like. The low temperature TPU hot melt adhesive film is not elastic, as the melting point temperature increases, the TPU hot melt adhesive film elasticity is enhanced, which is also due to the TPU material itself has the characteristics of the cause

    The biggest difference betweenTPU hot melt adhesive film and TPU film is the difference in usage or function, TPU hot melt adhesive film is for bonding and TPU film is for waterproofing and decoration, so there are some differences in the application areas. In TPU hot melt adhesive film bonding, TPU material can bond well with various materials with high bonding strength.TPU hot melt adhesive film and TPU film do not differ much and are substitutable in terms of characteristics and application areas. However, they are not interchangeable in some special places, but they can complement each other in some environments.

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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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