What movement class do you typically specify for curtain wall joints? Let us know below. 👇 #ASTMC920 #BuildingEnvelope #SealantSpecs #ConstructionQuality #FacadeEngineering #ElastomericSealant
Here is what you need to know about the industry’s benchmark for elastomeric joint sealants. Unlike general-purpose caulks (which meet ASTM C834), ASTM C920 is designed for dynamic movement . This standard tests a sealant’s ability to stretch, compress, and recover under real-world conditions. astm c 920 sealant
Beyond the Tube: Why ASTM C920 is the Gold Standard for Elastic Joint Sealants What movement class do you typically specify for
But not all sealants are created equal. If you are specifying or installing a joint sealant for a critical application (curtain wall, plaza deck, or window perimeter), one standard should be non-negotiable: . or window perimeter)