What's the adjective for plasterlike? Here's the word you're looking for.
Included below are past participle and present participle forms for the
verbs plaster and plastre which may be used as adjectives within certain contexts.
“I realize that I will have to remove the plastery surface to see how the layers and folds of the papyrus relate.”
“I've partially moved out of my plastery noisy house to stay with my friend whose roommate is away for a week or so.”
“I'm watching the mouse and the mouse is watching me, and I can smell the dust and the sainfoin and the cool plastery smell, and I'm up the Amazon, and it's bliss, pure bliss.”