Sand Bondo-Filled Areas and Clean

What happens here

Once the Bondo has fully cured, sand the repaired areas thoroughly. The video specifically mentions using a Uneeda medium sanding sponge to achieve a smooth finish. Sand in a circular motion, or along the grain if applicable, to feather the Bondo into the surrounding surface, making the repair invisible to the touch. Ensure all Bondo patches are completely smooth and level with the rest of the door. After sanding, wipe down the entire door surface with a clean cloth to remove all sanding dust.

Goal: Sand the Bondo-filled areas with a medium sanding sponge until smooth, then clean the entire surface to remove dust and prepare for painting.