ASTM C920-11 pdf free.Standard Specification for Elastomeric Joint Sealants. This ASTM specification covers the properties of a cured single- or multicomponent cold-applied elastomeric joint sealant for sealing, caulking, or glazing operations on buildings, plazas, and decks for vehicular or pedestrian use, and types of construction other than highway and airfield pavements and bridges. 4. Classification of Sealants 4.1 A sealant...