At present, the quality of jelly gum produced by domestic jelly gum manufacturers is uneven. In order to help more buyers to identify the quality of products, the quality of jelly gum is mainly distinguished by the following aspects;

1. Distinguish from color

Generally, the color of jelly gum is light yellow. We have seen many friends in printing factories use dark yellow or dark yellow jelly gum. In fact, it is not the real color of jelly gum. This kind of jelly gum must have added other chemicals. Because of the fierce competition in the jelly gum market, in order to save costs, reduce solid content and increase viscosity, some black heart manufacturers have to add reagents containing benzene formaldehyde to increase viscosity.

2. Distinguish from hardness

The viscosity of jelly gum is proportional to its solid content, and the solid content is also proportional to the price. The viscosity of jelly gum is too low, which will cause the instability of the product. Generally, jelly glue with high solid content is relatively low and hard. Therefore, for jelly glue with the same price, it is recommended to choose a higher hardness for the epoxy AB glue network here.

3. Distinguish from smell

The taste of jelly gum itself has a faint fragrance. As we said above, some manufacturers add some harmful substances such as benzene and formaldehyde to jelly gum to improve its viscosity in order to save costs. Toluene already has a strong pungent smell. In order to hide this smell, manufacturers specially add essence to cover it up. However, when the two smells are mixed together, it will emit a pungent fragrance. Therefore, Huakang Rubber Water Factory suggests that when choosing jelly gum, try to choose products with lighter taste.

4. Try to distinguish

Good jelly is generally stable in quality, and the adhesive interface is not easy to collapse at high or low temperatures. Some inferior products will produce very good results when they are just bonded, but problems will occur when the product is placed for a long time. Therefore, when trying out jelly glue, huakang glue factory suggests not to look at the effect at that time, and to store the trial sample at high temperature or low temperature for several days. if there is no problem, you can use it safely.

Summary: When purchasing jelly gum in large quantities, try to choose a jelly gum manufacturer with great production strength to supply it, so as to ensure the quality of the product while ensuring the purchase cost.