The use of hot melt adhesive is very extensive, and the effect is also good. And does hot melt adhesive have formaldehyde, let’s take a look now
Does hot melt adhesive have formaldehyde?
Formaldehyde-free. The hot melt adhesive is made of EVA resin as the main raw material. The material itself has no formaldehyde, so the hot melt adhesive does not contain formaldehyde. In addition, the basic properties of hot melt adhesives, such as bonding ability and bonding strength, are determined by the proportion and quality of the resin.
Therefore, pay attention to the purchase of EVA resin
The choice of EVA resin is also very important. If its melt index is relatively small, the fluidity will be relatively poor, resulting in poor wetting and permeability during the bonding process, but the bonding strength is relatively high. On the contrary, if the melt index is large, the melting temperature of the glue will be relatively low, and the fluidity will naturally be good, but the bonding strength will be relatively poor.
What are the advantages of hot melt adhesive?
1. The curing time of hot melt adhesive is very short, and it has good bonding strength and flexibility. Under normal circumstances, after the hot melt adhesive is applied, the solidification can be completed in just a few seconds, realizing the characteristics of melting when heating and solidification when cooling.
2. The performance of hot melt adhesive is relatively stable, and it will not be affected by changes in ambient temperature, thus ensuring the bonding performance of the article, avoiding the phenomenon of falling off later, and increasing the safety performance of use. At the same time, hot melt adhesives do not contain water or other fluxes, and are extremely easy to transport and store in a solid state.
3. Hot melt adhesive does not contain any flux, nor does it emit stains that are harmful to the human body, and at the same time, it does not produce the danger of burning and explosion, and its safety performance is very high. The adhesive layer formed by hot melt adhesive contains water resistance and moisture resistance, and it can be glued even if the environment is humid.
Winlong is a hot melt adhesive manufacturer, if you want to know more, please contact the adhesive experts at internetwoodglue.com. Our team of adhesive experts has served customers in dozens of industries. We look forward to the opportunity to be your trusted solution for all your adhesive needs
