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Double-Sided Hot Melt Adhesive Film Usage Guide—Factory owners shouldn’t miss it, the secret to improving product quality!
Dear factory owners, are you looking for a new material that can improve product quality and increase production efficiency? Double-sided hot melt adhesive film may be the answer you've been looking for. This guide will introduce you to the use of double-sided hot melt adhesive film in detail, helping you to easily improve product quality and win market favor.
2024-04-29
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Double-Sided Hot Melt Adhesive Film Usage Guide—Factory owners shouldn’t miss it, the secret to improving product quality!

    Dear factory owners, are you looking for a new material that can improve product quality and increase production efficiency? Double-sided hot melt adhesive film may be the answer you've been looking for. This guide will introduce you to the use of double-sided hot melt adhesive film in detail, helping you to easily improve product quality and win market favor.

    1. Introduction to double-sided hot melt adhesive film

    Double-sided hot melt adhesive film is a thermoplastic adhesive product that melts and becomes sticky when heated, and can be quickly and evenly pasted on the materials that need to be bonded. Double-sided hot melt adhesive film has the characteristics of strong adhesion, aging resistance, and water resistance, and is widely used in many fields such as clothing, shoe materials, bags, and electronic products.

    2. Advantages of double-sided hot melt adhesive film

    Strong viscosity: Double-sided hot melt adhesive film can quickly generate strong viscosity after heating to ensure strong adhesion between materials.

    Easy to operate: The use of double-sided hot melt adhesive film does not require complex processes and equipment, and the bonding can be easily completed by simply heating.

    Environmental protection and safety: The double-sided hot melt adhesive film is non-toxic and odorless, does not pollute the environment, and meets environmental protection requirements.

    Wide scope of application: Double-sided hot melt adhesive film can be used for bonding various materials to meet the production needs of different industries.

    3. How to use double-sided hot melt adhesive film

    Preparation work: Clean the materials to be bonded and ensure that the surface is free of oil, dust and other impurities. At the same time, prepare double-sided hot melt adhesive film, heating equipment (such as hot melt adhesive machine, hot air blower, etc.) and lamination tools.

    Heating double-sided hot melt adhesive film: Put the double-sided hot melt adhesive film into the heating equipment, and set the appropriate heating temperature and time according to the thickness and type of the material. Make sure the double-sided hot melt adhesive film is completely melted and sticky.

    Adhesive materials: quickly paste the heated double-sided hot melt adhesive film on the materials that need to be bonded, and use a laminating tool to apply a certain amount of pressure to make the materials closely adhere to each other.

    Cooling and solidification: After the double-sided hot melt adhesive film cools and solidifies, the bonding between materials is completed. At this time, the product already has strong viscosity and stability.

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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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