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You need to know these precautions when using EVA hot melt adhesive!
EVA hot melt adhesive, as a common adhesive, is widely used in various industries. But you know what? There are also some precautions when using EVA hot melt adhesive. Let's take a look at the issues to be aware of when using EVA hot melt adhesive.
Firstly, choose the appropriate EVA hot melt adhesive. Different materials require the use of different types of EVA hot melt adhesive. For example, paper products require the use of paper plastic special adhesive, while metal products require the use of metal special adhesive. Choosing the appropriate adhesive can ensure the bonding effect.
Secondly, attention should be paid to the usage temperature of EVA hot melt adhesive. Excessive temperature can make the adhesive too thin, leading to a decrease in adhesive strength; A too low temperature can make the adhesive too thick and even unable to flow. Therefore, before use, it is necessary to understand the temperature range of EVA hot melt adhesive and ensure that its temperature is within the specified range.
In addition, it is necessary to avoid exposing EVA hot melt adhesive to the air for a long time. Because the adhesive will undergo an oxidation reaction when in contact with oxygen in the air, resulting in a decrease in adhesive strength. Therefore, before use, the adhesive should be placed in a well sealed container and its contact time with air should be minimized as much as possible.
In addition, attention should also be paid to the storage environment of EVA hot melt adhesive. High temperature and humid environments can cause the adhesive to deteriorate, affecting its bonding effect. Therefore, EVA hot melt adhesive should be stored in a dry, cool place and avoid direct sunlight.
Another point to note is that when using EVA hot melt adhesive, it is important to avoid mixing different brands of adhesive. Due to the different components of adhesives from different brands, mixed use may cause chemical reactions that affect the bonding effect.
Pay attention to the service life of EVA hot melt adhesive. Generally speaking, the shelf life of EVA hot melt adhesive is about one year. If it is found that the adhesive has expired, thickened, or hardened, it should be treated or replaced with a new adhesive in a timely manner to avoid affecting the bonding effect and safety of use.
Although using EVA hot melt adhesive is simple and convenient, the above points should also be noted. Only by selecting appropriate adhesives, controlling the usage temperature, paying attention to storage environment, safety issues, and paying attention to the service life, can the bonding effect and safety be guaranteed. Therefore, extra attention should be paid during use to ensure the full performance and safety of its use. Meanwhile, for first-time users, it is advisable to conduct some simple experiments or consult with professionals to avoid unnecessary trouble and losses.
   2024-3-8
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