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How to choose the TPU hot melt adhesive film I need
Different specifications of TPU hot melt adhesive films have different melting temperatures, that is, high temperature and low temperature. If the heating temperature is higher than the temperature required by the TPU hot melt adhesive film, the TPU hot melt adhesive film will melt too fast or over-melt, making it easy for the glue to penetrate into the adhered material.
2023-04-06
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How to choose the TPU hot melt adhesive film I need

    Different specifications of TPU hot melt adhesive films have different melting temperatures, that is, high temperature and low temperature. If the heating temperature is higher than the temperature required by the TPU hot melt adhesive film, the TPU hot melt adhesive film will melt too fast or over-melt, making it easy for the glue to penetrate into the adhered material.

    How to choose the TPU hot melt adhesive film I need

    TPU hot melt adhesive films made of different raw materials have different hot melt adhesive film properties, and no glue is universal. For example, polyurethane has strong adhesion to fabrics, but almost zero adhesion to polyethylene plastics. It depends on the state of the material at high temperature. If the material can withstand a high temperature of 130 degrees, then be sure to choose a TPU hot melt adhesive film with a melting point lower than 130 degrees, because if the processing temperature does not reach the melting point of the glue, the TPU hot melt adhesive film will not melt, and the adhesion is almost 0. Do I need to consider softness when using TPU hot melt adhesive film? Do you want to consider the needs of high temperature or low temperature applications? Do you want to wash it with water? Is it dry cleaning? Should expansion be considered? If there are a variety of TPU hot melt adhesive films to choose from, please choose the most cost-effective TPU hot melt adhesive film. When meeting the adhesion requirements, please choose the thinnest one.

    TPU hot melt adhesive film has a wide variety of specifications, which can meet the application requirements of different products. It has fast bonding speed, easy to use, can save manpower, improve productivity and work efficiency; good bonding effect, high bonding fastness to certain specific materials, and its performance is far superior to glue. TPU hot melt adhesive film plays a role in bonding between the same material and different materials. TPU hot melt adhesive film is widely used. TPU hot melt adhesive film has the advantages of environmental protection and non-toxicity. Now our country pays more and more attention to and promotes environmental protection. TPU hot melt adhesive film has great development potential in China and will replace non-environmentally friendly material film.

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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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