What Should I Do If The Putty Layer Is Badly Chalked?

If the putty layer is badly chalked, meaning it has a powdery or flaky surface, you will need to take some steps to prepare the surface before applying a new layer of putty. Here are the steps you can follow:

1. Remove the loose and flaking putty from the surface using a putty knife or scraper. Be sure to remove all of the loose material until you reach a solid, sound surface.
2. Sand the surface of the area where the putty was removed using a fine-grit sandpaper to create a rough surface for the new putty to adhere to.
3. Clean the surface with a damp cloth or sponge to remove any dust or debris.
4. Apply a coat of primer to the surface to improve adhesion of the new putty layer. Allow the primer to dry according to the manufacturer’s instructions.
5. Apply a new layer of putty to the surface using a putty knife, smoothing it out evenly over the area. Allow the putty to dry according to the manufacturer’s instructions.
6. Once the putty is dry, sand it lightly with a fine-grit sandpaper to smooth out any rough spots or uneven areas.
7. Clean the surface again with a damp cloth or sponge to remove any dust or debris.
8. You can then paint or finish the surface as desired.

By following these steps, you can effectively repair a badly chalked putty layer and restore the surface to its original condition.