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Dongguan Green TPU Co.,Ltd.
15year TPU film/TPU hot melt adhesive film custom manufacturer
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What should I do if the TPU hot melt adhesive film does not melt, but the material is deformed?
We have introduced the use of TPU hot melt adhesive film, which involves three technical factors: temperature, pressure and time. With the wide application of TPU hot melt adhesive film, more and more new materials are beginning to try to use TPU hot melt adhesive film for bonding.
2021-12-17
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What should I do if the TPU hot melt adhesive film does not melt, but the material is deformed?

We have introduced the use of TPU hot melt adhesive film, which involves three technical factors: temperature, pressure and time. With the wide application of TPU hot melt adhesive film, more and more new materials are beginning to try to use TPU hot melt adhesive film for bonding.

We only need to deliberately choose a low temperature TPU hot melt adhesive film to bond the material. As long as the use temperature of the TPU hot melt adhesive film is lower than the softening temperature of the material itself, it can be guaranteed that the coated material will not be deformed during the hot pressing process. When choosing TPU hot melt adhesive film, you need to consider this issue in advance and narrow the range of TPU hot melt adhesive film models so that you can get twice the result with half the effort.

Precautions for TPU Hot Melt Adhesive Film

TPU hot melt adhesive film is an adhesive compound product widely used in industrial production. Liquid adhesive, as a traditional adhesive preparation method, is difficult to meet the requirements of environmental protection and high efficiency in industrial preparation. The emergence and application of TPU hot melt adhesive film has largely solved this problem.

TPU hot melt adhesive film is a specification product under the category of hot melt adhesive film, made of polyurethane and other materials. The production and processing technology of TPU hot melt adhesive film is more complicated. Simply put, the production of TPU hot melt adhesive film can generally be divided into two types: spray film and blown film. The products of the filming process are generally release films, which are suitable for the secondary filming process, and are mainly used for the filming of products: crafts; the products of the blown film process are light films, which are suitable for direct one-step forming and composite use. The main composite products are: leather, footwear, etc.

Green TPU specializes in the production of TPU hot melt adhesive film and TPU film. TPU hot melt adhesive film is made by special laboratory technology. It has the characteristics of low odor, environmental protection, convenience, strong adhesion, high viscosity, and large spraying area. It is suitable for use in factories, companies and families.

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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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