9 Problems and Solutions of Exterior Wall Putty in Painting Projects

Exterior wall putty is an important component in painting projects. It is a material used for filling and smoothing out rough surfaces on exterior walls before painting. It helps to create a smooth and uniform surface, and also helps to improve the durability and longevity of the paint job. However, there are several common problems that can arise with the use of exterior wall putty. In this article, we will discuss 9 problems and their solutions related to the use of exterior wall putty in painting projects.

1. Poor Adhesion: One of the most common problems with exterior wall putty is poor adhesion. This can occur due to a variety of factors, including the quality of the putty, the condition of the surface, and the application technique.

Solution: To improve adhesion, ensure that the surface is clean, dry, and free of any loose or flaking material. Use a high-quality putty that is specifically designed for exterior use, and apply it in a thin, even layer using a trowel.

2. Cracking: Another common problem with exterior wall putty is cracking, which can occur due to poor application or environmental factors such as extreme heat or cold.

Solution: To prevent cracking, ensure that the putty is applied in thin, even layers, and avoid applying it too thickly. Allow each layer to dry completely before applying the next one. If the cracking has already occurred, remove the affected area and reapply the putty.

3. Bubbling: Bubbling can occur when air becomes trapped in the putty during application. This can lead to unsightly bubbles and a rough surface.

Solution: To prevent bubbling, apply the putty in thin layers and use a trowel to smooth out any air pockets. Ensure that the surface is clean and dry before applying the putty.

4. Poor Durability: Exterior wall putty is designed to improve the durability of paint jobs. However, if the putty itself is not durable, it can lead to premature failure of the paint job.

Solution: Choose a high-quality putty that is specifically designed for exterior use. Apply it in thin, even layers, and allow each layer to dry completely before applying the next one.

5. Yellowing: Yellowing can occur when the putty is exposed to sunlight or other environmental factors. This can lead to a yellowish tint on the painted surface.

Solution: To prevent yellowing, choose a putty that is specifically designed for exterior use and has UV resistance. Use a high-quality paint that is also UV-resistant.

6. Shrinkage: Shrinkage can occur when the putty dries too quickly or when too much is applied. This can lead to cracking and an uneven surface.

Solution: Apply the putty in thin, even layers and avoid applying too much at once. Allow each layer to dry completely before applying the next one.

7. Uneven Texture: Uneven texture can occur when the putty is not applied evenly or when it is not smoothed out properly.

Solution: Apply the putty in thin, even layers and use a trowel to smooth out any uneven areas. Allow each layer to dry completely before applying the next one.

8. Poor Water Resistance: Exterior wall putty is designed to improve the water resistance of paint jobs. However, if the putty itself is not water-resistant, it can lead to premature failure of the paint job.

Solution: Choose a putty that is specifically designed for exterior use and has high water resistance. Apply it in thin, even layers and use a high-quality paint that is also water-resistant.

9. Difficult to Sand: Exterior wall putty can be difficult to sand, which can lead to an uneven surface and poor adhesion of the paint.