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Why can TPU hot melt adhesive film replace the traditional glue in the adhesive industry?
TPU hot melt adhesive film is an environmentally friendly, solvent-free, polymer-free adhesive material. When it comes to self-adhesive products, we should think of traditional glue. Why hot melt adhesive film can replace the traditional glue in the adhesive industry and become the darling of the market?
2021-10-22
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TPU hot melt adhesive film can replace the traditional glue in the adhesive industry

TPU hot melt adhesive film is an environmentally friendly, solvent-free, polymer-free adhesive material. When it comes to self-adhesive products, we should think of traditional glue. Why can TPU hot melt adhesive film replace the traditional glue in the adhesive industry and become the darling of the market?

1. High welfare. The cost per square meter of the sheet laminated with TPU hot-melt adhesive film is only a few cents higher than the sheet laminated with glue, but the added value of the product price is far greater than that of the glue that increases the cost of replacement. value. This is the reason why the new polymer TPU hot melt adhesive film replaces the traditional glue, which can bring better economic benefits to customers and enhance the value of their products.

2. Environmental protection. From the company's own environmental protection and safety point of view, the use of polymer TPU hot melt adhesive film has more environmental protection and safety advantages. In the production process, the glue coating workshop needs to use environmental protection treatment facilities, and the environmental protection investment and operating costs of the equipment are very expensive. Especially in economically developed areas, more and more companies adopt glue production technology. Since glue is dangerous goods, a special warehouse is needed to store dangerous goods, which increases environmental protection investment and safety risks, and it is difficult to review and approve.

3. It is suitable for production in glue production workshop, with pungent smell. Workers now pay more attention to protection and their own health. In the glue workshop, it is often difficult to recruit workers, and higher wages are needed to retain workers. The TPU hot melt adhesive film production workshop has almost no peculiar smell, and no harmful volatiles are released. More people are willing to work in such a clean environment.

TPU hot melt adhesive film has different colors and elasticity according to different melting points. Generally, the color of medium and high temperature TPU hot melt adhesive film is all transparent and elastic. The higher the melting point, the better the elasticity and the more transparent the color. The ultra-low temperature TPU hot melt adhesive film is white, transparent and inelastic. TPU hot melt adhesive film can be used in a wide range of industries, and can be used in some adhesive applications with standard ductility, such as seamless underwear.


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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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