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TPU hot melt adhesive film at different temperatures
​The correct choice of TPU hot melt adhesive film​ does not mean that the material will be successful and direct, because there is a very important factor in the entire bonding process that will directly affect the bonding effect. Temperature has a great influence on the application of TPU hot melt adhesive film.
2022-07-13
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TPU hot melt adhesive film at different temperatures

    The correct choice of TPU hot melt adhesive film does not mean that the material will be successful and direct, because there is a very important factor in the entire bonding process that will directly affect the bonding effect. Temperature has a great influence on the application of TPU hot melt adhesive film.

    TPU hot melt adhesive film is heated and melted at high temperature. When it changes from a solid state to a viscous liquid state, the liquid glue penetrates the surface of the adherend while applying corresponding pressure. After the TPU hot melt adhesive film is cold-cured, it forms adhesiveness and firmly bonds the two materials. So far, TPU hot melt adhesive film has completed its mission.

    The following introduces the TPU hot melt adhesive film of Tepuyou at different temperatures.

    1. Low temperature TPU hot melt adhesive film

    Excellent TPU hot melt adhesive film has a melting point of 45-50, a width of 1m-1.5m, a thickness of 0.01mm-3mm, with or without bare substrate and release paper. customizable colors

    2. Medium temperature TPU hot melt adhesive film

    Excellent medium temperature TPU hot melt adhesive film, melting point 55~70, width 1 m ~ 1.5 m, thickness 0.02 mm ~ 2 mm, and low temperature TPU hot melt adhesive film, there are two kinds of substrate and release paper. customizable colors

    3. High temperature TPU hot melt adhesive film

    The high temperature TPU hot melt adhesive film has a melting point of above 80, a width of 1-1.5 meters, and a thickness of 0.02-2 mm. It is divided into two types with or without substrate and with release paper. customizable colors

    In the use of TPU hot melt adhesive film, the bonding temperature is a very important factor, because TPU hot melt adhesive film can only melt and become sticky at a certain temperature.

    TPU hot melt adhesive film has the advantages of environmental protection and non-toxicity. Now China pays more and more attention to and promotes environmental protection. People are also aware of the current environmental problems, and their awareness of environmental protection is getting stronger and stronger. Therefore, 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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