Yes, you can use flat ceiling paint on walls, but according to insights from August 2022, you might not achieve the exact results you desire. While it's possible to use the same paint for both surfaces, there are subtle differences between paints specifically designed for walls and those for ceilings.
It is generally recommended to use ceiling paint for the ceiling and wall paint for the wall. Using the 'wrong' type of paint without proper preparation could potentially lead to unfavorable outcomes.
Understanding the Nuance
While technically feasible, applying ceiling paint to walls isn't always the ideal choice. The reference highlights that despite being paint, there are distinct characteristics that differentiate ceiling paint from wall paint.
Subtle Differences to Consider
- Formulation: Ceiling paints are often formulated to be thicker and less prone to dripping, which is beneficial when painting overhead. They may also contain properties designed to hide minor surface imperfections commonly found on ceilings.
- Durability: Wall paints are typically formulated to be more durable and washable. Walls see more traffic, potential scuffs, and dirt than ceilings do, requiring a finish that can withstand cleaning without damage. Flat ceiling paint is often less durable and harder to clean without marking.
- Finish: Ceiling paint is almost exclusively a flat finish. While flat finishes are available for walls, wall paints come in a wider range of sheens (egg-shell, satin, semi-gloss) offering varying levels of durability, washability, and light reflection.
Recommendations and Risks
The strong recommendation is to use paint specifically intended for the surface you are painting – ceiling paint for ceilings and wall paint for walls. The reference warns that it "can be disastrous if you are unprepared and use the wrong paint." This isn't to say a wall painted with ceiling paint will crumble, but you might encounter issues like:
- Difficulty cleaning the walls.
- Walls showing marks or scuffs easily.
- Requiring more coats for adequate coverage or hiding power compared to wall paint.
- A less durable finish overall.
Ceiling Paint vs. Wall Paint: A Quick Comparison
Based on the general differences that support the recommendation, here's a simple comparison:
| Feature | Ceiling Paint | Wall Paint |
|---|---|---|
| Typical Finish | Mostly Flat | Variety of Finishes (Flat, Satin, etc.) |
| Durability | Generally Lower | Generally Higher |
| Washability | Often Difficult to Clean Without Marks | Generally Easier to Clean |
| Application | Often Thicker, Less Splatter Prone | Formulated for Vertical Application |
Practical Insight
If you find yourself with extra flat ceiling paint and need to touch up a small, low-traffic area on a wall where washability isn't a major concern, it might work. However, for painting entire rooms, especially in high-traffic areas like hallways or kitchens, using a dedicated wall paint with an appropriate finish (often satin or egg-shell for washability) is advisable for longevity and ease of maintenance.
While you can technically use flat ceiling paint on walls, doing so means potentially sacrificing durability, washability, and the desired finish characteristics that wall paints are designed to provide. Adhering to the recommended use ensures the best performance and longevity for your painted surfaces.
