Ready mix plaster, also known as pre-mixed plaster or premix plaster, is a pre-blended dry mortar product used for interior and exterior plastering applications. It is designed to provide a convenient and consistent solution for plastering walls, ceilings, and other surfaces. Ready mix plaster typically contains a combination of the following components:
- Cement: Ready-mix plaster contains cement as the primary binder. Cement provides adhesion and strength to the plaster, allowing it to bond effectively to the substrate.
- Sand: Sand is an essential ingredient in ready-mix plaster. It provides bulk and helps to achieve the desired consistency and workability of the plaster. The sand used is typically finely graded to ensure a smooth finish.
- Lime: Some ready-mix plaster formulations may include lime as an additive. Lime helps to improve the workability, plasticity, and adhesive properties of the plaster. It also enhances the durability and resistance to cracking.
- Polymer Additives: Ready-mix plaster often includes polymer additives, such as redispersible polymer powders or cellulose ethers. These additives improve the workability, adhesion, and flexibility of the plaster. They enhance the water-retention properties, reduce shrinkage, and improve resistance to cracking.
- Fillers and Other Additives: Various fillers, such as calcium carbonate or talc, may be included in the ready-mix plaster formulation to control the density and improve the overall performance of the plaster. Additionally, other additives like air-entraining agents or water-repellent agents may be included to enhance specific properties of the plaster.
