CSLB C-33 Painting & DecoratingSurface PreparationMedium
A painting contractor is preparing an interior wall for painting. After cleaning, they discover several small hairline cracks and minor nail pops. Which of the following repair materials is generally most suitable for these imperfections to ensure a smooth, paintable surface?
- AAcrylic latex caulk.
- BJoint compound (mud).
- CEpoxy filler.
- DSpackling compound.
Show answer & explanationAnswer & explanation
Correct answer: D. Spackling compound.
Spackling compound is specifically designed for filling small holes, cracks, and imperfections in plaster, drywall, and wood. It dries quickly, sands smoothly, and accepts paint well.
Why the other options are wrong
- A. Acrylic latex caulk is flexible and good for sealing gaps, but not ideal for filling surface imperfections that need to be sanded smooth.
- B. Joint compound (mud) is for drywall seams and larger repairs; while it can be used, spackling is often preferred for smaller, quicker fixes due to faster drying and easier sanding.
- C. Epoxy fillers are very strong and used for structural repairs or exterior applications; overkill and difficult to sand for minor interior imperfections.
Spackling Compound Use
A putty-like material used to fill small holes, cracks, and surface imperfections in interior walls and ceilings before painting.
- Dries quickly and sands easily.
- Ideal for hairline cracks and nail pops.
- Provides a smooth, paintable surface.
Memory trick: Small flaws? Spackle smooth, then paint.