Wooster Brush Company
Wooster 4175-3 3" Flat Sash Firm Paint Brush
A 3-inch flat sash brush with firm nylon-polyester bristles for all paints on smooth or medium surfaces
- ColorPurple&Sable (Bristle)
- Firm bristles hold shape for precise cutting-in
- Synthetic blend works with every paint and coating
- 3" flat sash reaches trim and tight corners
- Wood sash handle gives balanced control
- Medium-to-smooth surfaces covered in one stroke
Professional Finish Brush
The Wooster 4175-3 is a three-inch flat sash brush designed for precision cutting and trim work. Its firm synthetic filament blend combines nylon and polyester for consistent paint pickup and smooth release across all paint and coating types. The wood sash handle provides a traditional grip suited to detailed application on medium and smooth surfaces. Ideal for decorators and DIY users who want clean edges on wood, metal, drywall or concrete.
Detail Painters Not Broad Coverage
This brush suits painters tackling window frames, door edges, skirting boards and other narrow profiles where control matters more than speed. The firm bristle stiffness holds its shape for sharp lines but will not hold enough material for large wall areas or rough-textured substrates. Users needing to cover wide expanses quickly or work on heavily stippled surfaces should look at a wider wall brush or roller system instead.
Check Handle Preference And Cleanup
Before ordering, confirm that a wood sash handle matches your grip preference and that you can clean synthetic bristles with the solvent appropriate to your chosen coating. The firm filament resists softening in water-based and acrylic paints but requires thorough rinsing to maintain stiffness. Ensure your project surfaces fall within the medium to smooth texture range for best results.
Highlights
- Firm bristles hold shape for precise cutting-in
- Synthetic blend works with every paint and coating
- 3" flat sash reaches trim and tight corners
- Wood sash handle gives balanced control
- Medium-to-smooth surfaces covered in one stroke
Specifications
| Brand | WOOSTER |
|---|---|
| Color | Purple&Sable (Bristle) |
Questions about this item
What surface materials is the 3" flat sash brush rated for?
The brush works on concrete, drywall, metal and wood surfaces.
Can I use this firm nylon/polyester brush with water-based acrylic paint?
Yes, the synthetic filaments are designed for all paints and coatings including acrylic and water bases.
How do I know the bristles are holding enough paint for a smooth finish?
The 11/16 in thick, 3 3/16 in long firm bristles should carry a full load without dripping when properly dipped.
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