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Hot melt film
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How does TPU hot melt adhesive film complete the bonding and recombination between materials
TPU hot melt adhesive film is a widely used adhesive in the market today. Compared with ordinary glue, it has better durability, energy saving and environmental protection, and is a non-toxic compound. There are many types of TPU hot melt adhesive films, and TPU hot melt adhesive film is currently the most used. Let's take a look at how the TPU hot melt adhesive film completes the bonding and lamination between materials.
2022-03-23
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How does TPU hot melt adhesive film complete the bonding and recombination between materials

TPU hot melt adhesive film is a widely used adhesive in the market today. Compared with ordinary glue, it has better durability, energy saving and environmental protection, and is a non-toxic compound. There are many types of TPU hot melt adhesive films, and TPU hot melt adhesive film is currently the most used. Let's take a look at how the TPU hot melt adhesive film completes the bonding and lamination between materials.

TPU hot melt adhesive film penetrates into the substrate by heating and melting, and then cools and solidifies to complete the bonding and compounding between materials. TPU hot melt adhesive film has the high-quality characteristics of traditional TPU film and the hot-melt adhesive performance of hot-melt adhesive film, while TPU hot melt adhesive film has good thickness consistency and symmetry. Environmentally friendly, colorless and odorless, with good air permeability; due to the similar physical and organic chemical properties of TPU film, it is a good adhesive for bonding TPU film.

Product features of TPU hot melt adhesive film:

1. TPU hot melt adhesive film has good washing resistance, but poor dry cleaning resistance;

2. TPU hot melt adhesive film is resistant to high temperature of 110 degrees and low temperature of minus 20 degrees;

3.TPU hot melt adhesive film is suitable for composite bonding of sponge, leather, shoe material, microfiber, mobile phone holster, computer bag, jacket, sports fabric, ceramics, cloth and other fields.

4. At the same time, the TPU hot melt adhesive film also has good elasticity and can be made into high elasticity according to requirements!

The high and low temperature in the high and low temperature TPU hot melt adhesive film is the high and low temperature of the melting point, and the low temperature TPU hot melt adhesive film refers to the low melting point hot melt adhesive film.

TPU is more and more popular with us due to its excellent performance and environmental protection concept. Currently, TPU can be a substitute for PVC wherever it is used. TPU film can not only cater to a variety of fabrics, but can also produce goods with clear lanes and stable specifications through vacuum pump thermoforming. With the increasing awareness of environmental protection in China, the use of TPU is becoming more and more common.


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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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