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The initial melting point of conventional TPU hot melt adhesive film is generally between 40-120 degrees
TPU hot melt adhesive film is a thermoplastic material, and its high temperature resistance is relatively poor. It needs to be melted by heating and then hardened by cooling to bond. The initial melting point of conventional TPU hot melt adhesive film is generally between 40-120 degrees, and the theoretical high temperature resistance is around 120 degrees. However, when it does not reach 120 degrees, the TPU hot melt adhesive film may soften to a certain extent, and the actual temperature resistance may be slightly lower than this temperature, about 100 degrees. This may be the peak of conventional TPU hot melt adhesive film products at present.
2023-08-18
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The initial melting point of conventional TPU hot melt adhesive film is generally between 40-120 degrees

    TPU hot melt adhesive film is a thermoplastic material, and its high temperature resistance is relatively poor. It needs to be melted by heating and then hardened by cooling to bond. The initial melting point of conventional TPU hot melt adhesive film is generally between 40-120 degrees, and the theoretical high temperature resistance is around 120 degrees. However, when it does not reach 120 degrees, the TPU hot melt adhesive film may soften to a certain extent, and the actual temperature resistance may be slightly lower than this temperature, about 100 degrees. This may be the peak of conventional TPU hot melt adhesive film products at present.

    At present, TPU hot melt adhesive film is mainly used in the field of clothing accessories. Due to its good water resistance and softness, it is very suitable for the processing of clothing fabrics. Examples include seamless underwear, embroidered logos, and waterproof zippers.TPU hot melt adhesive film adopts coating process, which has very strong adhesion fastness, high elasticity and water washing resistance, and can be said to be an environmentally friendly product. TPU hot melt adhesive film has a wide bonding range and a wide range of hardness, which is very suitable for various temperature resistance requirements, and has perfect elasticity, which can keep the clothes without deformation. In addition, the TPU hot melt adhesive film has a wide rebound range, strong anti-yellowing performance, and good bonding effect.

    TPU hot melt adhesive film is an adhesive used in many industries for bonding. Different types ofTPU hot melt adhesive films have different uses. We need to understand them in detail to choose TPU hot melt adhesive films with suitable specifications, because this will affect the quality of the finished product. In addition, hot melt adhesive film can also be used to bond fabrics. The composite bonding of various fabrics is one of the important industry scenarios for the application of TPU hot melt adhesive films, such as clothing industry, textile industry, wall cloth composite and curtain composite. Bonding cloth is a typical case of TPU hot melt adhesive film application, and it is already a very mature technology.

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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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