Drywall spackle cracks form because of a house settling on its foundation, the bumping of furniture on the walls, and even due to earthquakes. A cracked wall will therefore need repair to restore it to its original, appealing state. Drywall is a compound that resembles plaster.

Why does my spackle keep cracking?

The most common cause of cracking in freshly applied drywall mud is when it is applied too thickly. This exacerbates the issue with evaporation-based drying and can even crack curing compounds. Past this point, applying more drywall mud will cause the cracking to worsen if done improperly.

Can you spackle over cracked spackle?

Spackle is very brittle and will crumble if a repaired crack flexes ever so slightly. Restrict your use of Spackle to nail holes and small divots in wallboard and trim. Pick up a tube of paintable silicone.