Have you ever wondered about the difference between a water brush (also called an aqua brush) and a regular watercolor brush? In this blog post, we’ll break down the pros, cons, and uses of both so you know which one is the best fit for your painting style.
What Is a Water Brush and How Does It Work?
A water brush is a type of brush that has synthetic bristles attached to a plastic handle, which contains a water reservoir. This built-in water tank allows you to control the flow of water directly from the brush, making it super convenient for quick and on-the-go painting.

To use a water brush:
- Unscrew the handle.
- Fill the water tank by using a jar, tap, or pipette.
- Screw the handle back on.
- Press the handle to release water through the brush head.
Water brushes come in a variety of sizes and shapes, making them versatile for different types of painting. They’re especially useful for activating watercolors, blending paint, and cleaning the bristles with just a squeeze of water.
Pros and Cons of Using a Water Brush
Water brushes have unique benefits and some limitations. Here’s what to consider:
Pros:
- Portable and Compact: Ideal for traveling or painting outdoors.
- Convenient: No need for an external water container—just squeeze the handle to release water.
- Easy to Clean: You can clean the brush by squeezing out water and wiping the excess with tissue paper.
Cons:
- Water Control: It can be harder to control the water flow, leading to patchy washes or leaks, especially with lower-quality brushes.
- Uncomfortable Grip: The plastic handle and built-in water tank can feel bulky and less comfortable to hold for long periods.
- Streaky Results: You may need to press the handle frequently, which can result in streaks or uneven washes of color.
Creative Ways to Use a Water Brush
Water brushes aren’t just for painting with watercolors. You can also:
- Use them with watercolor pencils or watercolor brush pens for smooth blending and vibrant effects.
- Fill the water tank with liquid watercolors and experiment with hand lettering or color mixing on the go.
This makes water brushes great for sketching, quick studies, or experimenting with smaller areas where you don’t need a lot of water.
What Is a Regular Watercolor Brush?
A regular watercolor brush consists of a brush head made from either natural or synthetic bristles, a metal ferrule, and a wooden handle. Regular brushes come in various sizes, shapes, and qualities, offering more control and versatility for different painting techniques.
You’ll need to use a separate water container to dip the brush into when painting. But the variety of options available for regular watercolor brushes makes them the go-to choice for most watercolor artists.

Pros and Cons of Using a Regular Watercolor Brush
Pros:
- Better Water Control: With regular brushes, you have more control over how much water is applied to your paper, making it easier to achieve smooth washes and transitions.
- Versatility: Available in a wide range of shapes and sizes, regular brushes offer more options for different painting techniques, from large washes to fine details.
- Comfortable to Hold: The wooden handle and balanced design make them more comfortable to use for long painting sessions.
Cons:
- Requires a Water Container: You’ll need to bring an extra water container, which can be less convenient when traveling or sketching on the go.
- Cleaning Process: Cleaning regular brushes thoroughly requires rinsing in clean water, unlike the simpler cleaning process with water brushes.
Regular Brush vs. Water Brush: Which One Is Best for You?
Choosing between a water brush and a regular watercolor brush depends on how and where you like to paint.

- If you paint at home and prefer more control over your brush strokes and water flow, a regular watercolor brush is your best option. These brushes allow you to achieve smooth, even washes with ease, and they come in travel sizes for on-the-go use.
- If you paint on the go or like to sketch loosely and quickly without the hassle of carrying extra supplies, a water brush is ideal. It’s perfect for smaller projects, quick sketches, or combining with other media like watercolor pencils.
Can You Use Both?
Absolutely! Many artists use both depending on the project. You might prefer a regular watercolor brush for detailed work or large washes, while a water brush is handy for travel or quick studies. Both brushes can be useful tools in your watercolor journey.
Download My Free Guide to Watercolor Supplies!

Need more information about starting your watercolor journey? Make sure to download my free guide to watercolor supplies. You’ll find everything you need to choose the best tools for your painting projects.