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Wooster Ultra/Pro Firm angle sash brush, purple synthetic bristles, wood sash handle, 3 in wide

Wooster Brush Company

Wooster Brush Company 4174-3 Angle Sash Brush 3 in

SKU CH-NVJS-MF5GP

A 3-inch angle sash brush with firm polyester and nylon filaments for all paints on smooth or medium surfaces

  • Product typeBrushes
  • Firm bristles hold shape for crisp edges
  • Polyester/nylon blend works with all paint bases
  • 3-inch width covers trim in fewer strokes
  • Wood sash handle balances control and comfort
  • Purple filaments show wear and clean-up easily

Wooster 3-Inch Angle Sash Brush

The Wooster Ultra/Pro Firm angle sash brush measures three inches wide with synthetic polyester and nylon filaments. Its firm bristle stiffness and 11/16-inch thickness suit detailed trim and cut-in work. The wood sash handle provides a comfortable grip for extended painting sessions on interior or exterior projects.

Replaces Worn or Soft-Cut Brushes

Switching from a worn brush or one with softer filaments restores crisp edges and reduces streaking on medium and smooth surfaces. The upgrade is worth it when precise lines on wood, drywall, metal or concrete become difficult to maintain. Acrylic and water-based coatings release cleanly from the synthetic blend without excessive brush marks.

Simple Hand-Tool Setup

No assembly is required; the brush is ready to use straight from the package. Common issues include overloading the filaments, which causes drips on vertical surfaces, and insufficient cleaning that lets acrylic residue harden near the ferrule. Rinse thoroughly with water after each use and store with bristles straight to preserve the firm tip.

How it compares

Measured against everything we stock in Acrylic Paints & Painting Supplies, at today’s prices. Recalculated every night.

Price $10.99
Cheaper than about 75% of the 251 comparable items (median $14.99).

Specifications

Product
Brand nameWOOSTER
Product typeBrushes

Questions about this item

Will the 3 in brush head and 11/16 in bristle thickness fit standard trim and corner work?

The 3 in width and 11/16 in thickness suit typical trim, sash and corner cutting tasks on wood, drywall, metal or concrete.

How do I prep the synthetic polyester/nylon filaments before first use, and what step is often missed?

Rinse the firm purple bristles in water or solvent to remove loose fibres, then spin dry; skipping the rinse leaves dust that mars the first coat.

When should I replace the 4174 angle sash brush, and what wear signs appear first?

Replace it when the firm filament tips fray, lose their sharp chisel edge, or hold less paint, usually after heavy daily use on medium or smooth surfaces.

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