Keywords:
TPU film
Hot melt film
TPU apron
Electroplating tpu film
Dongguan Green TPU Co.,Ltd.
14year TPU film/TPU hot melt adhesive film custom manufacturer
Service Hotline
13686006083
Welcome to us
Comparison of TPU hot melt adhesive film and 502
TPU hot melt adhesive film is widely used in various industries, not only because of its high bonding fastness, but also because of its high elasticity, which can adapt to various bonding materials.
2023-07-17
Back List

Comparison of TPU hot melt adhesive film and 502

    TPU hot melt adhesive film is widely used in various industries, not only because of its high bonding fastness, but also because of its high elasticity, which can adapt to various bonding materials.

    If you want to choose one of the two adhesives that you are more familiar with, 502 and TPU hot melt adhesive film, I believe that about 80% of people will choose 502 adhesive. After all, it can also be regarded as a common adhesive in our daily student life.

    Looking at TPU hot melt adhesive film, although it has a wide range of applications and high popularity, most people cannot touch it because it belongs to an industrial application field. Therefore, many people may not have the impression of it. This kind of thing that looks like a plastic film is actually an adhesive, and it can be used in a wide range of places!

    From its characteristics, TPU hot melt adhesive film is actually an adhesive with certain toughness, but it does not have hardness. On the contrary, 502 glue has strong hardness but lacks toughness. Different features also correspond to different usage scenarios, so the two are not interchangeable.

    The main component of the raw material of TPU hot melt adhesive film is the polymer substance of thermoplastic polyurethane elastomer rubber, which has good elasticity with the increase of melting point temperature. So it is not elastic at low temperature environment, the elasticity of high temperature film is very good.

    The profit of TPU hot melt adhesive film is high. For example: wood boards bonded with TPU hot melt adhesive film are only a few cents higher per square meter than wood boards bonded with glue, but the added value of the product price is much greater than the replacement glue. Cost added value. This is why the new polymer TPU hot melt adhesive film is replacing traditional glue bonding, which can bring better economic benefits to customers and realize value enhancement for customers' products.

    免喷胶膜5.jpg

View Other
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.
MORE