How to judge the quality of hot melt adhesive?

Hot melt adhesive is a strong plasticity of the adhesive, and this adhesive can be bonded with a variety of substances, can change the properties with the change of temperature, strong adhesion after curing, large adhesion strength, so many industries will use this adhesive. If this adhesive is for ordinary household use, the quality is not important. If it is used in the industrial field, it is necessary to pay attention to quality, so how to judge the quality of hot melt adhesive?

First, the composition of the hot melt adhesive can be detected and analyzed under professional instruments, so that accurate data can be obtained.

Second, you can also observe the appearance, if the hot melt adhesive type is inconsistent, the workmanship is relatively rough, then the quality is worrying.

Third, the thermal melt adhesive can be melted to test the tensile strength, and the poor tensile strength is the unqualified hot melt adhesive.

Fourth, the hot melt adhesive after melting to observe whether there is a powdery substance, if there is a powdery substance indicating that there are many fillers, poor adhesion performance.

Fifth, good quality hot melt adhesive has temperature resistance, can be put in the zero degree or above 40 degrees of the environment for testing, if there is brittle cracking, soft now it means that the glue quality is not good.

At present, good quality hot melt adhesive can be used in the field of industrial manufacturing, temperature resistance and flame retardant performance are guaranteed, the current can meet this quality requirements is a large brand of products, widely used, can be applied to new energy, military, medical, aviation, shipbuilding, electronics, automobiles, instruments, power supplies, high-speed rail and other industries.

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