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How to use TPU hot melt adhesive film
​There are many small partners asking what is the method of using TPU hot melt adhesive film​? 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. It has perfect elasticity and can keep clothes from deforming. The connection effect is better. TPU hot melt adhesive film is in a solid state when filled at room temperature, and it will become sticky when heated to a certain temperature. Its use method will have certain differences due to different bonding materials and composite environments. So let's talk about how the TPU hot melt adhesive film is used
2022-11-29
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How to use TPU hot melt adhesive film

    There are many small partners asking what is the method of using TPU hot melt adhesive film? 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. It has perfect elasticity and can keep clothes from deforming. The connection effect is better. TPU hot melt adhesive film is in a solid state when filled at room temperature, and it will become sticky when heated to a certain temperature. Its use method will have certain differences due to different bonding materials and composite environments. So let's talk about how the TPU hot melt adhesive film is used

    The first tools used for the TPU hot melt adhesive film are ironing machines, heat press machines and irons. When bonding, adjust the composite tool to the corresponding temperature, and iron it hard for 10-20 seconds to complete the composite bonding. The overall operation is not difficult. If there is degumming and weak bonding, it may be that the selected TPU hot melt adhesive film has a deviation in specification, or the ironing temperature is not enough. After analyzing the specific reason, do it again. Targeted adjustments are sufficient.

    For industrial production that requires batch processing, it is necessary to make changes to the composite equipment. Due to the need to meet the production capacity requirements, it is necessary to choose a professional thermal compound laminating machine. At present, there are still many types of thermal lamination laminating machines. Whether it is TPU hot melt adhesive film, the applicability of laminating machines is relatively strong, so for factories that already have thermal laminating machines, even if they replace TPU For the type of hot melt adhesive film, there is basically no need to purchase the corresponding compound equipment.

    The method of use mentioned above is extensive. According to the temperature resistance and folding resistance of the materials used, TPU hot melt adhesive film with relative melting point is selected, and mass production is carried out after testing according to the process requirements.

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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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