Exterior Wall Putty: The Ultimate Guide to a Durable and Protective Finish

WONDER WALLCARE CONSTRUCTION May 03 2024 visibility 290

Exterior wall putty is a crucial component in safeguarding and enhancing the external facade of buildings. In India’s diverse climatic conditions, from heavy monsoons to intense sun, the right exterior wall putty can provide long-lasting protection and an aesthetically pleasing finish. This guide delves into what you should know about exterior wall putty, from selection to application, ensuring your walls are not only beautiful but also weather-resistant.

Selecting the Right Exterior Wall Putty

  1. Wall Putty Types: Understanding the different types of wall putty is essential. Wonder wall putty is a cement-based putty that is known for its strength and durability and is suitable for both internal and exterior walls. Acrylic wall putty, on the other hand, is more suited for interior walls​​​​.
  2. Surface Compatibility: The putty should be compatible with your wall surface, whether it’s concrete, brick, or plaster. Cement wall putty, for example, is ideal for concrete and masonry surfaces​​​​.
  3. Climate Considerations: For regions with high rainfall, like Kerala or coastal West Bengal, a waterproof wall putty is advisable. This type of putty provides excellent protection against heavy rains and humidity​​​​.

Preparing for Application

Inspect the Surface: Begin by closely inspecting the wall or surface for any imperfections, cracks, holes, or peeling paint. This initial assessment will help you understand the extent of preparation needed.

Cleaning: Ensure the surface is clean. Use a cloth or a soft brush to remove surface dust. For areas with accumulated dirt or grease, a mild detergent mixed with water can be used. Rinse the surface with clean water afterwards to remove any soap residue.

Drying: After cleaning, allow the surface to dry completely. This is important because applying putty or paint on a damp surface can lead to issues like poor adhesion or the growth of mold and mildew.

Removing Loose Paint: Use a scraper, wire brush, or sandpaper to remove any flaking or peeling paint. This step ensures that the new coating adheres properly to the surface without any underlying issues that could cause it to fail.

Sanding: Once all loose material is removed, sand the surface to create a smooth, even base. Sanding helps to remove any remaining imperfections and provides a slightly rough texture for better adhesion of the new coating.

Dust Removal: After sanding, it’s essential to remove all dust from the surface. You can use a clean, dry cloth, a soft brush, or a vacuum cleaner with a brush attachment to ensure the surface is completely dust-free.

Addressing Stains: For tough stains that can’t be removed with general cleaning, consider using a specialised cleaner or stain blocker. This is particularly important for stains like water marks, grease, or smoke, which could bleed through the new coating if not properly sealed.

Repairing Cracks and Holes: Use a suitable filler material to repair any cracks or holes in the surface. Ensure the filler is fully dried and sanded smooth before proceeding with the application of putty or paint.

Final Check: Before proceeding with the application of wall putty or paint, do a final check to ensure the surface is clean, dry, and smooth. Any missed spots or imperfections should be addressed at this stage to guarantee the best finish.

Applying the Wall Putty

  1. Mixing: Follow the manufacturer’s instructions for mixing ratios. The mixture should be stirred continuously to achieve a smooth consistency​​.
  2. Application Technique: Apply the putty evenly using a trowel or spatula. Ensure the first coat is completely dry before applying the second coat. Sanding between coats may be necessary for a smooth finish​​​​.

Benefits of Exterior Wall Putty

  1. Durability and Protection: Exterior wall putty forms a protective layer, shielding the walls from environmental damage, including UV rays and moisture, thus prolonging the life of the paint job​​​​.
  2. Aesthetic Appeal: A well-applied exterior wall putty ensures a smooth and even base, vital for the final appearance of the paint. It enhances the vibrancy and longevity of the paint applied over it​​​​.
  3. Weather Resistance: Waterproof putties are essential in protecting walls from rain and humidity, a critical factor in many parts of India. This feature prevents efflorescence, a common issue in Indian homes​​​​.

Challenges and Solutions

  1. Rainy Season Construction: In the rainy season, it’s really important to keep an eye on the weather and apply putty at the right time. If putty gets soaked before drying, it may peel off​​.
  2. Damp Walls: In damp environments, applying putty can be challenging. It’s recommended to ensure walls are dry before application to avoid excessive early strength and difficulties in sanding​​.

What to Choose!

Exterior wall putty paint is a vital investment in the longevity and beauty of your building’s exterior. By choosing the right type, preparing the surface properly, and applying it correctly, you can ensure a durable and protective finish that withstands the test of time and the elements.

The king of Good Walls!

For top-quality exterior wall putty solutions, explore Wonder WallCare’s range of products. Our putties are designed to cater to the diverse needs of Indian homes, ensuring protection, durability, and aesthetic appeal. Visit Wonder WallCare to discover the best exterior wall putty for your project.