CSLB C-33 Painting & DecoratingSurface PreparationEasy
A painting contractor is preparing an interior gypsum board wall for painting. They notice several small nail pops and minor indentations. Which of the following is the most appropriate material to use for these repairs before priming?
- AExterior acrylic caulk
- BEpoxy filler
- CConstruction adhesive
- DLightweight spackling compound
Show answer & explanationAnswer & explanation
Correct answer: D. Lightweight spackling compound
Lightweight spackling compound is specifically designed for filling small holes, cracks, and imperfections in interior surfaces like gypsum board. It dries quickly and sands easily, making it ideal for preparation before painting.
Why the other options are wrong
- A. Exterior acrylic caulk is for sealing gaps and joints, not for filling depressions in gypsum board.
- B. Epoxy filler is typically used for more structural repairs or on tougher substrates, not for minor gypsum board imperfections.
- C. Construction adhesive is for bonding materials together, not for cosmetic surface repairs.
Lightweight Spackling
A ready-to-use compound for filling small holes, cracks, and imperfections on interior walls and ceilings before painting.
- Dries quickly and sands easily.
- Ideal for gypsum board and plaster.
- Not suitable for large structural repairs.
Memory trick: Light, Quick, Smooth: The Spackle Rule for Gypsum.