You primarily use a flat brush for blending and painting in large areas due to its shape and ability to hold a significant amount of paint.
Here's a more detailed breakdown of its uses:
- Blending: The flat shape allows for smooth transitions between colors, making it ideal for creating gradients and soft effects.
- Painting Large Areas: The rectangular shape allows the brush to cover a lot of surface quickly and efficiently.
- Creating Long Strokes: When used flat against the surface, it's perfect for laying down long, even strokes.
- Delicate Lines and Small Touches: By using the tip or side of the brush, you can also achieve finer lines and details.
In summary, a flat brush is a versatile tool best suited for broader applications such as blending and covering large areas, while still offering the ability to create finer details when needed.