The only way you'll get at the joint compound is to remove the paint. Products exist to dissolve even dried latex paint, or you can sand or scrape it off. Once that's done, a simple damp cloth will allow you to rub away the joint compound.
Adjust sanding pressure and choose sanding techniques (circular or straight) for consistent results. Factor sandpaper durability for abrasive life and grit applications for joint compound versus plaster. Always prioritize sanding safety: dust control, eye protection, and proper ventilation.
Putty knife for applying compound. Sanding sponge smooths edges. Joint compound applicator for even compound application. For bigger jobs, you might need a jab saw and electric tools. These tools cut down on dust.

Moving forward, it's essential to keep these visual contexts in mind when discussing Which Sanding Tool For Joint Compound.
Essential Tools for Applying Joint Compound Effectively. Preparing Your Drywall Surface for Joint Compound Application. How to Apply Your First Coat of Mud. What Are Effective Feathering Techniques? Why Drying Time Is Key Between Coats. Tips for Sanding Between Coats...
Q: Can joint compound stick to painted walls? Yes, but it bonds best if the surface is slightly roughened by sanding or scuffing first. Q: Whats the difference between spackle and joint compound? Spackle: Best for small nail holes or minor dings.

How to Sand Joint Compound.Yes, spackle and joint compound are different. Here's how to know which to use for your project.