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TPU hot melt adhesive film has strong adhesion
?The TPU hot melt adhesive film adopts the coating process, which has extremely strong adhesion, high elasticity and washability. It can be described as an environmental protection product. The adhesive range and hardness range of TPU hot melt adhesive film? are very wide, which is very suitable for all kinds of temperature resistance requirements and can keep the shape of clothes from deformation. TPU hot melt adhesive film has a wide rebound range, strong yellowing resistance, and excellent bonding effect. It is mainly used to solve the composite of materials, which is not affected by the existence of the base material, but will affect its use.TPU hot melt adhesive film with base material is generally used for products requiring secondary composite, while TPU hot melt adhesive film without base material is generally used for products requiring primary composite molding.
2023-03-15
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TPU hot melt adhesive film has strong adhesion

    The TPU hot melt adhesive film adopts the coating process, which has extremely strong adhesion, high elasticity and washability. It can be described as an environmental protection product. The adhesive range and hardness range of TPU hot melt adhesive film are very wide, which is very suitable for all kinds of temperature resistance requirements and can keep the shape of clothes from deformation. TPU hot melt adhesive film has a wide rebound range, strong yellowing resistance, and excellent bonding effect. It is mainly used to solve the composite of materials, which is not affected by the existence of the base material, but will affect its use.TPU hot melt adhesive film with base material is generally used for products requiring secondary composite, while TPU hot melt adhesive film without base material is generally used for products requiring primary composite molding.

    The TPU hot melt adhesive film is mainly composed of TPU, which is a polyurethane elastomer rubber polymer compound, belongs to environmental protection material, is non-toxic and harmless to human body and environment, and has the characteristics of oil, water, mildew and drug resistance.

    Traditional glue usually contains toxic substances such as formaldehyde or requires toxic solvents to improve adhesion, which is not environmentally friendly. In contrast, the polyurethane component used in the TPU hot melt adhesive film is safe and harmless, and has viscosity after heating. It is a thermoplastic adhesive, and does not use organic solvents. From these two aspects, TPU hot melt adhesive film is an environmental protection product and harmless to human body.

    The TPU hot melt adhesive film will only melt when it is heated to the corresponding temperature, so customers sometimes mistakenly believe that it will melt in hot summer. In fact, the melting point of TPU hot melt adhesive film is usually above 90 degrees, some even above 80 degrees, and the temperature in summer is far from enough to melt the TPU hot melt adhesive 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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