The first thing to understand about is that there are three main types of plaster currently used in building construction. The types are; gypsum plaster, lime plaster and cement plaster.
If you have any D.I.Y. inclinations, applying clay plaster to walls is a simple process using a trowel over drywall, brick or existing plaster. While clay plaster is a good option for creating a unique look to any wall, it can also be used for other purposes, including finishing drywall seams.