It's important to prime after new drywall installation. The new surface will be porous and will absorb the color of the paint. Primers will also cover the joint compound and provide a good base for texturing or painting over skim-coated drywall.

Once the right primer has been purchased, feel free to prime your drywall. Lastly, after 2-3 hours, you can safely paint your drywall.

Drywall is made of fire-resistant gypsum material, and a taped and sealed drywall can slow or stop fires. On the other hand, if the drywall is not sealed properly, it won't be able to function as a fire-suppressant. This is the main reason it is against the building code in many areas to have an unfinished drywall.

Q: Can I paint directly on drywall? A: No, after you are done hanging your drywall, you need to make sure that you mud and primer it before applying any coat of paint. After all of those steps have been complete, you can begin the process of painting your drywall.