
Causes:
- Usage of highly pigmented paint
- Usage of interior paint for an outdoor application
- Low quality putty
Solution:
- Use a stiff bristle brush to remove as much of the chalk as possible.
- Dust-off it completely by using a clean cloth.
- Check by any more chalk by touching it with you hands over the surface after cleaning.
- Apply primer and recoat the surface.
- Do not use a interior paint/putty for exterior surfaces.
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