Beneficial tips for concrete plastering  

Concrete building structures have been around for centuries. People often overlook the importance of plastering them. It can increase the durability of concrete surfaces. However, plastering concrete surfaces requires careful application techniques to achieve a smooth and durable finish. Here are some essential tips to effectively do so: 

Surface preparation 

If we examine concrete history, preparation is the foremost step for successful plastering. Ensure the concrete surface is completely free from dust and loose particles. Use a stiff brush or pressure washer if necessary. Fill all visible cracks or holes in the concrete surface using a suitable concrete compound. Let it dry completely before proceeding with further steps.  

Mix plaster properly 

Mix plaster according to the manufacturer’s instructions. If anything goes wrong here, you might need to rework. Use clean water and a mixing paddle to achieve a smooth and consistent mixture. Aim for a creamy plaster mix which is workable but not too wet. Adjust water content as needed to achieve the desired consistency for plastering. 

Application of plaster 

Start by applying a scratch coat of plaster to the concrete surface. Use a plastering trowel to press the plaster firmly into the surface, creating a good bond. After the scratch coat has set but is still slightly tacky, apply the final coat of plaster. Use sweeping motions with the trowel to spread the plaster evenly and achieve a smooth finish. Gradually feather the edges of the plaster to blend it seamlessly with the surrounding surface.  

Tricks for vertical surfaces 

Work in manageable sections for vertical surfaces such as walls to ensure even coverage and consistency while plastering. In concrete history, plasterer’s stilts or props were used to support the weight of the plaster while working on vertical concrete surfaces. It helped maintain control and prevent sagging. 

Finishing touches 

Clean tools such as trowels and floats regularly to prevent dried plaster from affecting the finish. Once the plaster begins to firm up, use a steel trowel or float to achieve a smooth finish. Avoid overworking the plaster, as it can lead to quick dryness and become uneven. 

Curing and protection 

Let the plaster cure and dry completely per the manufacturer’s recommendations before painting or applying further finishes. Protect newly plastered surfaces from direct sunlight and excessive moisture during curing to prevent cracking or uneven drying. 

Conclusion 

Whether planning a renovation or building a new construction, plastering is crucial. Plastering concrete surfaces requires attention to detail and proper technique to achieve a professional and durable finish. By following these tips, you can end up with a surface that enhances your construction project’s visual appeal.