GB/T 13477.10-2002 is used to determine the definite extension adhesion of building sealing materials. This standard details the test procedure and specifies the required equipment, such as stretching devices, measuring tools, etc. Specify the bonding preparation process of sealing material specimens and substrates, stretching the specimen to a specific elongation and holding. By observing the bonding of sealing materials and substrates in the fixed extension state, such as whether there is debonding, cracking, measurement of bonding strength, etc., the bonding performance under stretching conditions is evaluated. This provides a key mass detection basis for the application of building sealing materials in scenarios with stretching requirements, ensuring the Reliability and Stability of sealing engineering.