Sand & Cement

Sand and cement plastering is a popular technique used for both internal and external surfaces in construction and renovation projects. It provides a smooth and durable finish, enhancing the aesthetics of the walls while protecting them from moisture and other elements. In this article, we will explore the process, benefits, and tips for sand and cement plastering for both internal and external surfaces.

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The key benefits and importance of sand and cement plastering for your building and why you should consider hiring a professional plastering company for this task.

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Understanding Sand and Cement Plastering:

Sand and cement plastering is a traditional method that involves applying a mixture of sand, cement, and water to a wall or surface. The combination of these materials provides strength, adhesion, and stability. It is a versatile technique suitable for various surfaces, including brick, concrete, and block walls.

Internal Sand and Cement Plastering:

Internal sand and cement plastering is commonly used to create a smooth and even surface for painting or wallpapering. Here are the key steps involved:

Surface Preparation: The surface should be clean, free from dust, grease, and loose particles. Any cracks or holes should be filled with a suitable filler.
Mixing the Plaster: Mix sand and cement in the ratio of 3:1 or as recommended by the manufacturer. Add water gradually and mix until a consistent, workable paste is achieved.
Applying the Plaster: Start by applying a scratch coat with a trowel, ensuring an even thickness. Once it sets, apply a second coat, known as the floating coat, using a straight edge to achieve a smooth finish. Finally, a finishing coat can be applied for a polished look.
Curing and Drying: Allow sufficient time for the plaster to cure and dry before painting or applying any other decorative finishes.

External Sand and Cement Plastering:

External sand and cement plastering is primarily used to protect the walls from weathering and enhance their durability. Here are the key steps involved:

Surface Preparation: The surface should be clean, free from dust, dirt, and loose materials. Any cracks or unevenness should be repaired before plastering.
Mixing the Plaster: Mix sand and cement in the ratio of 4:1 or as recommended by the manufacturer. Add water gradually and mix until a workable consistency is achieved.
Applying the Plaster: Start by applying a scratch coat using a trowel, ensuring an even thickness. Once it sets, apply a second coat, known as the floating coat, to achieve a smooth and level surface. Finally, a finishing coat can be applied for added protection and aesthetics.
Curing and Drying: External plastering requires sufficient time for curing and drying, especially in humid climates. Protect the freshly plastered surface from direct sunlight, rain, and extreme weather conditions.

Benefits of Sand and Cement Plastering:

Provides a smooth and even finish to the walls, enhancing the aesthetics of the space.
Helps in levelling out uneven surfaces and hiding imperfections.
Protects the walls from moisture, weathering, and other external factors.
Improves the thermal insulation properties of the walls.
Offers durability and long-lasting performance.

Sand and cement plastering is a reliable and versatile technique for both internal and external surfaces. Whether you are renovating your home or working on a new construction project, understanding the process, benefits, and tips of sand and cement plastering can help you achieve a professional and durable finish. By following the recommended procedures and using high-quality materials, you can transform your walls into aesthetically appealing and long-lasting surfaces.