GB/T 13477.23-2022

This standard specifies a test method for evaluating the durability of building sealants by subjecting them to repeated extension and compression cycles while simultaneously being exposed to accelerated weathering conditions. It is applied in the construction industry to assess the long-term performance and service life of sealants used in building joints, such as those in curtain walls, windows, and expansion joints. The test simulates the combined effects of thermal movement and environmental degradation to ensure sealants maintain their sealing integrity over time.