Before the production and sales of silicone structural adhesive, the country implemented the license system, because the silicone structural adhesive is generally used in curtain wall assembly, dozens of meters or even hundreds of meters of building curtain wall whether glass curtain wall or stone curtain wall, are made of silicone structural adhesive in the bonding, fixing role, visible the power of structural adhesive. If a large number of structural adhesive products that do not conform to national technical standards and quality regulations enter the market, it will inevitably cause great harm and inestimable losses to the safety of life and property of the country and the people. Thus it can be seen that the country's high quality requirements for structural adhesive, strict production management is very necessary. At present, the country has relaxed the restrictions on the production and sale of silicone structural adhesive. As long as the structural adhesive products qualified by the building product testing institutions recognized by the state can be produced, sold and used.