Oil-based and water-based paints are quite different from each other. While water-based paints are usually preferred, oil-based paints also have their benefits. In this article, we’ll explain the differences between oil-based and water-based paints. We’ll also talk about whether oil-based paint is better than water-based, the disadvantages of oil-based paint, and when you should use it.
Water Based vs Oil Based Stain
Paints that contain synthetic resins are called oil-based paints and are highly durable. Oil-based paint adheres well to many surfaces even without a primer. Additionally, its covering ability is superior to that of water-based paints.
On the other hand, water-based paints dry quickly, saving time, and are easier to apply. Nowadays, water-based paints are the most preferred wall paints. So, which is better: oil-based or water-based paint? Here are the key differences between oil-based and water-based paints:
1-Base Material
- Oil-Based Paint: Contains solvents, typically mineral spirits.
- Water-Based Paint: Uses water as the primary carrier.
2-Flexibility
Most water-based paints have a flexible structure, allowing them to be used on both soft and hard surfaces. However, oil-based paints have a hard structure and become rigid as they dry. Therefore, they lose their flexibility and may crack when applied to flexible surfaces.
3-Color Durability
The resins in oil-based paints are not suitable for light colors. Synthetic paints in white and similar shades tend to yellow quickly. On the other hand, water-based paints maintain their color durability across all shades. “Related article: What color should i paint my room?”
4-Covering Dark Colors
Oil-based paints generally provide better coverage than water-based paints. When applied over dark colors, oil-based paint tends to cover much better than water-based options. “Related article: Paint over dark colors without primer.”
5-Odor
Synthetic paints are based on chemical resins, which emit odors for extended periods. The smell can linger for days or even weeks. In contrast, water-based paints either have a very mild odor or are completely odorless. “Related post: How to get rid of paint smell“
6-Drying Time
Oil-based paints, regardless of brand, dry much slower than water-based paints. You typically need to wait at least 24 hours between coats, which can slow down the application process. Water-based paints dry much faster, and waiting 2 to 4 hours between coats is usually sufficient.
7-Ease of Application
Water-based paints are generally easier to apply than oil-based paints. Fast drying, no roller marks, and low odor make them easier to apply and save time. “Related article: How to paint a room fast and easy.”
8-Cleanability
While many water-based paints can be cleaned, they are not as easy to clean as oil-based paints. Oil-based paints are much more resistant to stains and can be cleaned with many general-purpose cleaners. “Related post: How to clean walls without streaks“
9-Availability
Water-based paints are more widely available because they are more commonly used than oil-based paints. If you need a specific color or paint type, it may be easier to find a water-based option. “Related post: Best interior paint for walls“
10-Paintable Surfaces
Oil-based paint can be applied over almost all types of surfaces and previous coats of paint. However, the surfaces that water-based paints can be applied to are more limited. Water-based paints adhere well to absorbent and matte surfaces. A primer is needed for other surfaces or to apply them over different types of paints.
11-Durability
Both water-based and oil-based paints are durable, though oil-based paints are generally more durable than water-based paints. This can vary slightly depending on the manufacturer. “Related post: How to fix chipped paint on wall“
12-VOC Ratio
In the paint industry, VOCs (Volatile Organic Compounds) are often found in paints, varnishes, solvents, and similar products. The release of VOCs into the atmosphere has raised environmental and health concerns, as some VOCs can damage the ozone layer and negatively impact air quality. Oil-based paints tend to have higher VOC levels than water-based paints. “Related article: How to remove lead paint.”
13-Shine and Smoothness
Both oil-based and water-based paints are available in glossy and matte finishes. However, oil-based paints are generally glossier and smoother. Glossy paint is not usually preferred for walls, but if you need a glossy, smooth finish, oil-based paints are a good choice.
14-Cleaning
- Oil-Based Paint: Requires solvents or paint thinner for cleaning.
- Water-Based Paint: Can be easily cleaned with soap and water. “If it’s not completely dry.”
Frequently Asked Questions
We answer the most frequently asked questions about oil-based and water-based paints below. For any other questions, feel free to use the comment section.
Which is better oil or water-based paint?
Choosing between oil-based and water-based paint depends on your needs. Water-based paints are easy to clean, quick-drying, and low odor, making them ideal for indoor walls and ceilings. They’re eco-friendly and resistant to yellowing. Oil-based paints are more durable, provide great coverage, and offer a smooth, glossy finish, making them perfect for high-traffic areas, woodwork, and moisture-prone surfaces. For quick-drying and low odor, go with water-based; for long-lasting durability and a glossy finish, choose oil-based.
What are the disadvantages of oil-based paint?
While oil-based paints are durable, they come with a few downsides. They have a strong odor, take longer to dry, and require solvents for cleanup. Plus, they tend to have higher VOC levels, which can affect air quality. Over time, oil-based paints can yellow and become brittle. They are also generally more expensive than water-based options, which makes them less ideal for eco-conscious projects or indoor spaces.
What lasts longer, oil-based or water-based paint?
Oil-based paint typically lasts longer than water-based paint. It’s more resistant to wear, tear, and harsh conditions, which makes it a great option for high-traffic or moisture-prone areas. That said, water-based paints are improving in durability and can still last for many years, especially on interior walls.
When should you use oil-based paint?
Oil-based paint is great when you need a tough, long-lasting finish. It works well on woodwork, trim, high-traffic areas, exteriors, and metal surfaces. If you’re painting something that needs extra protection or a shiny finish, oil-based paint provides a smooth, glossy look that can stand up to wear and moisture.
What are the disadvantages of water-based paint?
Water-based paint isn’t as durable as oil-based paint, and it may require more coats for full coverage, especially on dark or strong colors. It also doesn’t adhere well to all surfaces without prep work and can be sensitive to extreme temperatures, so it’s not always ideal for high-wear areas or harsh conditions.
What is the main advantage of using water-based paint?
The main advantage of water-based paint is how easy it is to use. It dries quickly, has little to no odor, and cleans up with soap and water. Plus, it’s more eco-friendly due to lower levels of VOCs, making it a safer option for both you and the environment.
Why do people use oil-based paint?
People choose oil-based paint for its durability, smooth finish, and excellent coverage. It’s perfect for areas that get a lot of use, like trim, doors, and cabinets. Oil-based paint also provides a hard, glossy finish that resists wear and tear, making it ideal for high-traffic areas or surfaces exposed to moisture.
Do I need primer for oil-based paint?
While using a primer with oil-based paint is recommended, especially on bare wood, metal, or previously painted surfaces in poor condition, oil-based paint generally adheres well to many surfaces. So, it can often be used without primer, but for the best results and longer-lasting finish, applying primer is a smart choice.
Does oil-based paint give a better finish?
Yes, oil-based paint often gives a smoother, more durable finish than water-based paint. It’s perfect for trim, doors, and areas exposed to heavy use, as it provides a glossy, hard surface that resists wear. However, keep in mind that it takes longer to dry and requires more effort to clean up.
Is oil-based paint cancerous?
Oil-based paints can contain volatile organic compounds (VOCs) and other chemicals that may be harmful to health when inhaled in large amounts over time. Some VOCs have been linked to cancer. To stay safe, always use oil-based paints in well-ventilated areas, follow the manufacturer’s safety instructions, and consider low-VOC or VOC-free options when possible.
