What Is Expansion Joint Sealant?
Expansion joint sealant is a term used to describe a group of weatherproofing products intended for use as aesthetic or functional sealing agents in gaps in concrete slabs, walk ways, decks, bridges, and sidewalks. Expansion joint sealant materials are chosen for their ability to absorb impact and expand or contract along with the rest of the structure without cracking or separating. These sealing agents include several types of fluid or gel epoxies and solid cork or wood strips. Depending on the expansion joint type, these sealants may be used with or without a backing material.
