Starting with paint by numbers is simple, but the brushes you use will quickly change your results. Most kits include basic brushes that work at first, but they often lose shape after one or two projects. Choosing the right brush sizes and types helps you stay inside the lines, avoid streaks, and reduce the need for multiple paint layers.
Best Brushes for Paint by Numbers (Quick Answer)
What Size Brush for Paint by Numbers?
If you want a simple setup that works for most kits, use:
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Size 0 or 00 round brush → tiny sections and edges
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Size 1 round brush → most standard areas
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Small flat brush → backgrounds and larger blocks
In practice, you will use the smallest brush more than expected, especially on detailed canvases where numbers are close together. In most kits, customers notice that the smallest brush wears out first, since it’s used the most on fine areas and edges.
Choosing the Right Paint Brush
Selecting the right paint brush is less about having many options and more about using the correct size at the right time. For most paint by numbers kits, 2–3 brushes are enough. If you want more control or your kit feels limiting, it’s worth checking a few additional options in our paint by numbers accessories collection. Smaller brushes give you control, but they also dry faster, so you need to reload paint more often. Larger brushes speed up coverage but can easily go outside the lines if the paint is too thin.
A common issue is paint flowing into neighboring sections. This usually happens when the brush is too big or overloaded. Using a slightly smaller brush solves this immediately.
Purpose-Built for Paint by Numbers
Paint by numbers brushes are typically synthetic, and that’s what you should stick with. Synthetic bristles hold acrylic paint well and keep their shape longer than cheaper kit brushes. Softer bristles help with smooth coverage, but if they are too soft, they start bending and lose precision after a few uses.
In many kits, the included brushes are usable but not consistent. After 2–3 paintings, the tip often splits, which makes clean edges harder to achieve.
Brush Types for Different Techniques
Each brush type has a clear role in paint by numbers:
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Flat Brushes: Best for backgrounds and larger areas where you want fast, even coverage.
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Round Brushes: The most used brush type for general painting and controlled lines.
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Fine-Tipped Brushes: Necessary for very small sections and tight spaces.
Most painters rely on round brushes for 80–90% of the work.
Flat Brushes for Paint by Numbers
Flat brushes work well for skies, backgrounds, and larger color blocks. They help reduce visible streaks if you apply paint in one direction. However, they are rarely useful for detailed sections, where they tend to overflow edges.
For beginners, flats are helpful at the start of a project, but you will likely switch to smaller round brushes as soon as you move to detailed areas.
Round Brushes
Round brushes are the most practical choice for paint by numbers. A size 1 or 0 handles most sections without losing control. By adjusting pressure, you can create both thin lines and slightly wider coverage.
If you only upgrade one brush from your kit, make it a good-quality round brush. It has the biggest impact on the final result.
Fine-Tipped Detail Paint Brushes
Fine-tipped brushes are essential for areas where numbers are very close together or where light colors need precise application. These are especially useful when covering printed lines, where accuracy matters.
In many cases, even a size 0 brush is not small enough. Some painters trim a few bristles to create a sharper tip for extreme detail work.
Bristle Material and Handle Type
For acrylic paint, synthetic bristles are the best option. They are durable, easy to clean, and maintain their shape longer. Natural bristles like hog hair are not ideal for paint by numbers, as they are too stiff for small sections.
Handle length is less important than control. Shorter handles are usually more comfortable for detailed work, especially when painting close to the canvas.
Caring for Your Paint Brushes
Acrylic paint dries quickly, and once it hardens, the brush is usually ruined. Always rinse brushes during painting, especially when switching colors. Avoid leaving them in water for too long, as this bends the bristles.
After finishing, clean brushes with lukewarm water and reshape the tip with your fingers. This simple step can extend the life of your brushes across multiple projects.
Included Paint Brushes in Our Kits
Every Paint By Numbers kit includes three basic brushes that cover most needs. They are enough to complete a full painting, but if you plan to do multiple projects, upgrading your brushes makes the process easier and more precise.
For better control and consistency, you can use our 10-piece paint brush set, which includes smaller sizes suited for detailed sections. This is especially helpful for complex designs where standard kit brushes start to struggle.
Updated: March 26, 2026
