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The relationship between melting point, hot pressing temperature and temperature resistance of TPU hot melt adhesive film
The relationship between melting point, hot pressing temperature and temperature resistance of TPU hot melt adhesive film
2017-10-31
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A lot of people on the TPU hot melt adhesive film melting point, the relationship between the pressing temperature and the temperature of the confusion. Today to talk with you and killax simple: 

TPU hot melt adhesive film.jpg

1, TPU hot melt adhesive film melting point is also known as TPU hot melt adhesive film flow starting temperature. Flow temperature is TPU hot melt adhesive film began moving temperature the lowest temperature, processing. 

2, TPU hot melt adhesive film hot pressing temperature hot pressing temperature refers to the rubber surface toward a bonding material through the protective paper heating, let the glue surface melting, surface material is bonded to the adhesive to the temperature. 

3, TPU hot melt adhesive film temperature refers to the temperature exceeds the critical point to softening temperature. 

The relationship between the three is this: high temperature melting temperature of hot pressing temperature. < < temperature selection depends on TPU hot melt adhesive film on the adhesive material. Generally, TPU hot melt adhesive film bonding material to a lower melting point than the temperature. There are three kinds of resistance to our TPU hot melt adhesive film temperature for you to choose, namely: low temperature, middle temperature and high temperature.

 TPU hot melt adhesive film due to high initial adhesion, can be bonded to various materials, has very good fastness, good washing performance, widely used in clothing, shoes, bags, handbags, clothing, medical. Military, toys, fabric shoe fitting, Guijiaoxiongdian, underwear accessories, waterproof zipper, trademark fitting, computer 3C supplies, water bag, air bag, foam composite products. 

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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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