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When storing TPU hot melt adhesive film, we should pay attention to the following points
​​First of all, we need to clarify the characteristics of TPU hot melt adhesive film.TPU hot melt adhesive film is a thermoplastic elastomer material with excellent high temperature resistance and adhesion, so it needs to pay special attention to the control of temperature and humidity when storing.
2024-03-07
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When storing TPU hot melt adhesive film, we should pay attention to the following points

    First of all, we need to clarify the characteristics of TPU hot melt adhesive film.TPU hot melt adhesive film is a thermoplastic elastomer material with excellent high temperature resistance and adhesion, so it needs to pay special attention to the control of temperature and humidity when storing.

    First, avoid high temperature. Since TPU hot melt adhesive film is a thermoplastic material, too high temperature will lead to its deformation or even melting. Therefore, it should be stored away from high-temperature areas, such as next to windows in direct sunlight, near fireplaces or heat source equipment. It is recommended to store the hot melt adhesive film in an environment where the temperature is stable at about 25℃ to ensure its stability and service life.

    Second, keep it dry. Excessive humidity will lead to moisture absorption of TPU hot melt adhesive film, which in turn affects its adhesion and use. Therefore, the storage location should be selected in a place with low relative humidity to avoid moisture and mold. At the same time, the storage container should also have moisture-proof function, such as the use of good sealing plastic bags or metal boxes.

    Third, avoid heavy pressure and folding. In the storage process, should avoid heavy objects on the TPU hot melt adhesive film, so as not to cause its deformation or damage. In addition, frequent folding or curling should be avoided to avoid affecting its flatness and adhesion. It is recommended that the hot melt adhesive film be placed flat on a dry, flat shelf to maintain its original shape and size.

    Fourth, pay attention to fire prevention. Although the TPU hot melt adhesive film itself is not easy to burn, but still need to pay attention to fire safety when stored at high temperatures or near the source of fire. The storage place should be far away from open flames and flammable items in case of fire.

    Fifth, regular inspection and turning. In order to ensure that the quality of TPU hot melt adhesive film is stable, it is recommended that the stored hot melt adhesive film be inspected and turned regularly. This helps to find and solve possible problems in time, such as deformation, mold and so on. At the same time, turning also helps to prevent the hot melt adhesive film from being in the same position for a long time, reducing deformation and stress concentration caused by gravity.

    In conclusion, when storing TPU hot melt adhesive film, we need to pay special attention to factors such as temperature, humidity, pressure, folding, fire prevention as well as regular inspection and turning. Only by doing a good job in these aspects can we ensure that the quality and performance of TPU hot melt adhesive film can be fully utilized to meet various application requirements. At the same time, the correct storage method also helps to extend the service life of TPU hot melt adhesive film, saving costs and improving benefits for enterprises.

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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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