What is an adhesive
Adhesives, commonly known as glue, can connect the same kind or two or more homogeneous or heterogeneous parts (or materials) together, and have sufficient strength after curing. Organic or inorganic, natural or synthetic substances, It has important applications in construction, coatings, new energy, photovoltaics, home appliances, automobiles and other industries.

Second, the cause of the bubbles in the adhesive
The reasons why the adhesive produces foam during the production process are:
1. In the process of producing glue, it is necessary to add chemical additives, which cause incompatibility and cause foaming problems.
3. The operating environment and high temperature or humidity in the glue production process may cause foaming problems.
3. Problems in the mixing process in the glue production process. Improper operation can easily cause foaming substances to enter it, which is more likely to cause foaming.
4. In the process of mixing glue, the uneven distribution of ingredients is also likely to cause foam problems.
5. The raw materials of the adhesive itself contain chemical substances that are easy to foam. For example: too many surfactants can change the surface tension of the adhesive, causing the hidden foaming properties of the adhesive to explode, resulting in continuous foaming.

The harm of foam in the production of adhesives
1. A large amount of foam will reduce the adhesive strength of the adhesive liquid, resulting in poor quality adhesive liquid.
2. Too much foam will lead to insufficient utilization of equipment and reduce production speed.
3. A large amount of foam will make the operation difficult, and the air of the foam hinders the dispersion of pigments or fillers.
4. It will deepen the volume of the barrel, make the weight of the barrel uneven, and increase the cost of packaging.
5. Too much foam when using adhesives will affect the appearance of the product, and customers will reduce the reliability of the product after use.