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How much do you know about hot melt?
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How much do you know about hot melt?

2021-07-14 13:51

Hot melt is solid at room temperature, including particles, powder or glue blocks, glue strips, etc. There are many kinds of shapes. When heated at a certain high temperature to a certain temperature, it will reach the melting point and become a liquid. It can be coated or compounded and then recovered into a solid after low-temperature cooling. The advantage of this glue is that it can be repeatedly operated, has high bonding strength, is environmentally friendly, has no peculiar smell, and can also play a supplementary role. This is also its highly anticipated feature in industrial areas. The next thing I will tell you is the common sense of hot melt.


The surface treatment of hot melt is not as strict as other adhesives, but the dust and oil on the surface of the substrate should also be properly treated, so that the hot melt particles can play a very good role in bonding.
The working time of hot melt is usually about 15 seconds. With the wide application of modern production methods-assembly lines, the working time of hot melt is getting shorter and shorter, such as book binding and speaker production. The working time of hot melt needs to reach 5 seconds. about.
Hot melt is sensitive to temperature contrast. When the temperature reaches a certain level, the hot melt begins to soften, and when the temperature is lower than a certain temperature, the hot melt will become brittle. Therefore, it is necessary to fully consider the temperature change of the product location when choosing a hot melt.

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