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Can EVA hot melt adhesive be reused? Hot melt adhesive is widely used in industries such as electronic components, metals, wood, toys, furniture, handicrafts, paper products, textiles, packaging, etc., all of which require hot melt adhesive.
Someone asked before: Can EVA hot melt adhesive be reused? If it can be reused repeatedly, isn’t the economic utility particularly good?
In fact, theoretically, hot melt adhesive can be used one or two more times. However, if used too many times in actual environments, it will definitely affect the effectiveness of hot melt adhesive.
EVA hot melt adhesive generally needs to be heated and melted before use. However, excessive heating can cause the molecular structure of the hot melt adhesive to become unstable, leading to aging and affecting the performance of the hot melt adhesive itself. Therefore, there is an uncertain impact on the bonding effect of hot melt adhesive. Generally speaking, the more heating cycles, the more unstable the hot melt adhesive becomes. Heating can cause molecules to become overly active. There are usually two consequences. 1. The performance of hot melt adhesive is weakened. The second is the appearance of carbides. If the performance continues to weaken and reaches the critical point of carbides, carbides will appear.
Therefore, if it is a material with particularly high requirements for adhesive effect, for safety reasons, it is still necessary to avoid using aging adhesive.
EVA hot melt adhesive has long been a favorite adhesive for customers, and there are good reasons for this. The main assets provided by these multifunctional adhesives are: Capable of bonding impermeable surfaces. The ability to fill in gaps. Easy to store. Environmental protection. To make the best use of EVA hot melt adhesive, please […]
Why does hot melt adhesive turn black when heated? The color of hot melt adhesive itself does not change easily before and after heating, but it is not absolute in actual use. So why does a good room temperature adhesive turn black when heated and dissolved? At the production level, hot melt adhesive will undergo […]
In Europe and America, Glue is commonly used as a synonym for Adhesive. Natural adhesives are commonly referred to as Glue, which is equivalent to “glue” in Chinese. It is a traditional idiom, such as Animal Glue for animal glue and Vegetable Glue for plant glue. After the 20th century, with the use and development […]
When rushing to print images and text, problems such as glue cracking, falling pages, or unstable adhesion may not necessarily be just a problem with the glue. It can be checked item by item from the aspects of equipment temperature, glue amount, paper status, production rhythm, etc., and confirmed by sampling based on actual equipment and materials.
