Trekell Onyx Brushes

Our Onyx Synthetic Squirrel brushes are designed for artists who want the softness and absorbency of natural squirrel hair with the reliability and durability of a high quality synthetic.

These brushes feature ultra soft, smooth filaments that closely mimic the feel and flow of traditional squirrel hair, making them ideal for watercolor, gouache, ink, and fluid acrylic painting. The highly absorbent filaments hold generous amounts of water, paint, and medium, allowing you to create smooth washes, effortless blends, soft edges, and fluid transitions with minimal reloading.

Unlike natural squirrel hair brushes, Onyx brushes provide consistent performance without shedding while maintaining the softness and fluid paint handling artists expect from professional wash brushes.

Each brush is made with Trekell's Thermyx™ filament. During manufacturing, the bristles are shaped and heat set into their form, creating built-in memory that helps the brush maintain its shape and performance over time.

If the bristles begin to lose their form, a quick dip in simmering water can help bring them back closer to their original shape. For best results, reshape the bristles while warm and allow them to dry in place. Using Trekell Brush Restorer at this stage will help the bristles dry more firmly and hold their shape longer.

The 6-inch short handle provides excellent control and comfort, making these brushes perfect for detailed work, delicate applications, and controlled washes.

Why Artists Choose Trekell Onyx Synthetic Squirrel

• Built with Thermyx™ filament for shape memory and longevity
• Ultra soft filaments designed to mimic natural squirrel hair
• Highly absorbent for exceptional water and paint retention
• Ideal for watercolor, gouache, ink, and fluid acrylic painting
• Excellent for washes, blending, glazing, and soft transitions
• Will not shed like natural hair squirrel brushes
• Synthetic and vegan friendly materials
• Comfortable 6-inch short handle for precision and control
• Available in Quill Mop, Round, Bright, Filbert, Dagger, Oval Wash, and Script/Rigger shapes

These are not disposable brushes. They are professional artist tools designed to be maintained, perform consistently, and last through years of studio use.

Find your perfect shape and experience the difference of Thermyx™.