This phenomenon generally occurs on alcohol-type neutral adhesive, because the solubility of aluminum plastic plate and plastic steel door and window materials is not good with alcohol-type silicone adhesive, which affects the bonding quality. In this case, it is recommended that users choose ketoxime-type neutral adhesive, which will greatly reduce the occurrence of this situation; If users choose alcohol-based neutral glue, should first wipe the surface of the substrate with acetone or xylene, the substrate surface is completely dry after sizing; After scrubbing the substrate should be applied within one hour. Therefore, we repeatedly emphasize that due to the diversity of the base material, the user should test the compatibility between the glass glue and the base material according to their own needs before using to observe whether it meets the use needs.