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TPU is one of the components of hot melt adhesive film
TPU is one of the components of hot melt adhesive film. TPU is an abbreviation in English, and its Chinese name is polyurethane. It has good elasticity, softness, water resistance, and good adhesion to textiles, TPU films, polyurethane sponges, rubber and other materials. Compared with other components of TPU hot melt adhesive film, TPU material feels a bit rustling, and the color is white and yellow. It is widely used in textiles, toys, daily necessities and industrial products.
2022-01-05
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TPU is one of the components of hot melt adhesive film

TPU is one of the components of hot melt adhesive film. TPU is an abbreviation in English, and its Chinese name is polyurethane. It has good elasticity, softness, water resistance, and good adhesion to textiles, TPU films, polyurethane sponges, rubber and other materials. Compared with other components of TPU hot melt adhesive film, TPU material feels a bit rustling, and the color is white and yellow. It is widely used in textiles, toys, daily necessities and industrial products.

TPU hot melt adhesive films are widely used. Bondable materials include, but are not limited to, various textiles, leather, TPU sponge and rubber materials.

It can be used for bonding in shading curtains, clothing, shoes and other industries.

Factors affecting the price of hot melt adhesive film include model, thickness, width and demand. Specifically, for different materials and uses, which specifications of TPU hot melt adhesive film should be selected, please contact Tepuyou first, and we will recommend products suitable for your materials according to your needs.

TPU hot melt adhesive film is divided into high melting point type and low melting point type. The difference between the two is not only the difference in operating temperature, but also the wide range of characteristics and attributes: TPU hot melt adhesive film at high temperature is elastic and transparent, and the melting point is higher. High, the better its elasticity and transparency; while the TPU hot melt adhesive film at low temperature has no elasticity, and the color is white matt.

The method of use is different from that with or without release paper.

When using TPU hot melt adhesive film without release paper, you only need to put the TPU hot melt adhesive film between the two layers of materials to be bonded, and then use hot-pressing equipment for hot-press bonding. Note that the TPU hot melt adhesive film should not exceed the edge of the adhesive material, otherwise the adhesive film will melt and stick to the equipment at high temperatures.

When using TPU hot melt adhesive film with release paper, it is necessary to use a pressing device to pre-attach the film to one side of the material. After cooling, tear off the release paper and attach it to the other side of the material.

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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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