The light weight gypsum-based plaster comprises gypsum hemihydrate formulated with special additives for controlling working and setting characteristics. Perlite is one lightweight aggregate known for enhancing the plaster's handling, workability and application. Gypsum Plaster can be applied to internal surfaces via hand or machine. With good impact strength, an excellent white, matt and smooth finish is achieved after drying. Gypsum plastering has many advantages over sand cement plaster, like faster construction, reduced dependency on river sand, water curing, shrinkage cracks elimination, larger density, reduction in the structural load on the building as well as electricity bills.