Spackle is a type of paste or putty used to patch holes, hide cracks and even out surfaces. Using ceiling putty is necessary to cover nail heads, dents, dings and other imperfections before the application of the finishing touches.
A standard spackle is made of a type of plaster derived from hydrated calcium sulfate that bonds well to cement boards and drywall ceiling. Spackle can be bought in different sizes and weights at hardware stores, either as a premixed solution or in powder form. If you prefer simplicity, you may want to opt for powder spackle over premixed versions because it's easier to control the consistency by adding water to create a ceiling paste.
How to Spackle a Ceiling Properly
Before working on the ceiling, make sure that the ladders and scaffolds are carefully set and the drywall has been sanded, cleaned and prepped. Open the windows of the room for proper ventilation.
When you're ready, use a putty knife to scrape and remove splinters and debris from the drywall first. Next, place a small amount of spackling paste on the putty knife to apply to the needed areas.
Use a feathering method to spread the spackle in one direction. If necessary, use two types of putty knife, one thin and one wide, to make the application more efficient.
Patching Holes Using Spackle
Scrape the spackle at a right angle to even out the coverage for nail heads and small holes. However, you'll have to use a wire screen or a <ahref="https: www.lowes.com="" projects="" repair-and-maintain="" patch-and-repair-drywall="" "=""> </ahref="https:>self-adhesive mesh patch to fill a hole bigger than 4 inches. This screen must be securely attached to the drywall before applying the first spackle layer.
If you're satisfied with the coverage and application, let the spackle dry for at least four to five hours. Don't forget to sand the holes and uneven surfaces again before applying the second layer.
Repeat the process if you need to apply a third or fourth layer. Make sure to let each layer dry completely between applications so the holes and dents will be more solid. Having too many layers of spackle might make your ceiling look lumpy.
If you have textured drywall, use a sponge to dab on the spackle when you apply the final layer. Finally, remove extra spackle around holes and surfaces using the putty knife, then sand the areas again one last time. The ceiling is now ready for priming, painting and finishing touches.