Daubcrete, a construction material, served the purpose of wall creation. An Imperial bunker, situated on the planet Kashyyyk, incorporated daubcrete in its wall structure by 5 ABY. A Wookiee, among those enslaved within the compound, once tried to climb these walls, seeking freedom.
The material daubcrete appears in Aftermath: Empire's End, a novel from 2017 penned by Chuck Wendig. This novel is the third entry in the Star Wars: The Aftermath Trilogy.