The seal is cleaned with cotton yarn to remove dust, oil and water from the surface of the glued part. If the surface is easy to peel and rust, you should use a metal brush to remove it in advance. If necessary, you can also wipe the surface with organic solvents such as alcohol and acetone. Cut the tip of the sealant into a certain size according to the shape of the construction site. Use manual or pneumatic adhesive. The gun applies glue to the construction site, and the surface is flattened and modified within the surface drying time. The parts with particularly strict surface requirements should be covered with protective tape on both sides of the glued part and peeled off after being leveled.

　　If the seals accidentally stain the non-construction parts, they can be wiped clean with a cotton cloth dipped in alcohol. After opening, it should be used up in the day, otherwise it needs to be strictly sealed and stored. The best construction is under the conditions of temperature 15-35℃ and humidity 55%-75%RH. It is recommended to bake in a 60℃ oven for at least 30 minutes. The quality of the seal directly affects the packaging effect, the storage and life of the packaging, and even affects the credibility of the packaging. For this reason, sealing glue has become an important part of the packaging field. According to the shape and use of the sealing material, it can be roughly divided into three categories: gasket sealing, tape sealing and colloidal sealing. The purpose of anti-counterfeiting and inferior products is anti-counterfeit sealing. It is a packaging sealing technology that has emerged in recent years. It is generally sealed with hot melt adhesive or pressure sensitive tape. The appearance of fake and inferior products protects the interests of consumers.