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Use of substrate-free elastic TPU hot melt adhesive film
There are two main types of hot melt adhesive film, one is hot melt adhesive film with release paper, and the other is hot melt adhesive film without release paper.
2020-12-17
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Application of non-substrate elastic TPU hot melt adhesive film

    There are two main types of  hot melt adhesive film, one is hot melt adhesive film with release paper, and the other is  hot melt adhesive film without release paper.  hot melt adhesive film with release paper is also called with bottom The  hot melt adhesive film of paper means that there is a layer of release paper on one side of the double-sided adhesive film, which plays a protective role. The structure is double-layered (the so-called release paper, you can understand it as oily paper, similar to the protective paper on the back of the old express note, which is usually made by coating silicone oil on one or both sides of the shading paper), and there is no release paper model It is also called hot melt adhesive bare film in the industry, which is a single layer structure with only one layer. There is little difference in performance between the model with release paper and the model without release paper, but the usage method is different, and the choice should be based on the actual use process of the customer.

     hot melt adhesive films are available in different thicknesses and widths, and customization is supported by stock specifications. Tepuyou TPU  hot melt adhesive film has a conventional thickness of 0.05mm~2mm, and a conventional width of less than 1.5 meters.

    TPU hot-melt adhesive film is 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 automotive interiors, clothing, shoes and other industries.

    For different materials and uses, we should choose which TPU hot melt adhesive film is suitable. We can contact us and we can provide services such as product selection and application guidance, quotation and free samples.

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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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