GB/T 13477.10-2017 is a standard for the determination of the definite extension adhesion of building sealing materials. This standard specifies the accuracy requirements of test equipment, such as stretching devices, and details the preparation process of the specimen to firmly bond the sealing material to the substrate. The specimen is then stretched to the specified elongation and maintained. During this process, the bonding status of the sealing material to the substrate is closely observed, and the bonding strength is measured. Through these measurements, the bonding performance of the sealing material in the stretched state is accurately evaluated, providing a key mass reference for its application scenarios in building stretching, ensuring the Reliability and safety of sealing engineering.