How to judge whether the polishing adhesive is qualified?

How to judge whether the adhesive is qualified or not? Two pieces of bonded materials can be torn along the bonding interface. If the bonded material is damaged after tearing, the bonding strength is sufficient; If only the bonding interface is separated, it indicates that the strength of waterborne white latex is insufficient. Sometimes the water-based white latex with poor performance will appear degumming and brittle film after being stored in high or low temperature environment for a period of time. Therefore, it is necessary to do high temperature heat change and low temperature embrittlement test to determine whether its quality is reliable.

Polishing glue has strong adhesion to PVC film, PVC board, wood, fiberboard, etc. it is mainly used for polishing color box after polishing, pasting PVC paper on skylight, making color box edge sealing for paper (board), making speaker with PVC cover, and edge sealing for handbag. It can also be used for bonding PVC plastic and paper, wood, plywood, fiberboard and other materials. The surface of the goods shall be treated to make the surface free of oil, dust and other impurities. The bonding surface should be fully contacted. Gelatinization should be even and appropriate. After gelatinization, it is required to air slightly. For products with too large stiffness, it is required to press after bonding.

Polishing glue is non-toxic, non-toxic, non polluting, high solid content and fast bonding speed. It is widely used in the pasting and binding of hard wood or fiberboard lining board such as sugar, wine, tea, moon cake, etc. with outer decorative laminating paper. The bonded packing box has no peculiar smell, which meets the requirements of green environmental protection and food hygiene.