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Wooster 3-inch flat sash paint brush with natural wood handle and synthetic bristles

Wooster Brush Company

Wooster Brush Company 4232-3 3" Flat Sash Paint Brush

SKU CH-H59S-15ZWC

A 3-inch flat sash brush with firm synthetic Micro Tip bristles and a wood handle for all paints on smooth or medium surfaces

  • Product colorTransparent
  • Firm synthetic bristles hold heavy coatings without sag
  • 3 in flat sash shape cuts sharp lines on trim
  • Stainless steel ferrule resists rust through repeated cleaning
  • Natural wood sash handle balances for controlled strokes
  • Works with oil and water based paints on multiple surfaces

Professional Flat Sash Brush

The Wooster Brush Company 4232-3 is a 3-inch flat sash brush built for painters who need precise control on trim, sashes and detailed woodwork. Its firm, synthetic Micro Tip bristles hold their shape across all paint and coating bases, making it a reliable choice for both oil and water-based projects.

Build Compatibility and Workflow

The stainless steel ferrule resists corrosion from solvents while the natural wood sash handle provides a traditional grip for long sessions. The brush works on concrete, drywall, metal and wood surfaces with medium to smooth texture, eliminating the need for separate tools when switching substrates during a job.

Capacity and Coverage Limits

A 3-inch bristle width and 5/8-inch thickness deliver enough material load for efficient coverage on window frames, door panels and cabinetry. The firm stiffness keeps edges sharp on smooth surfaces, but the width becomes limiting on broad wall expanses where a larger brush or roller would move faster.

How it compares

Measured against everything we stock in Painting Tools & Sprayers, at today’s prices. Recalculated every night.

Price $11.99
Pricier than about 55% of the 640 comparable items (median $9.99).

Specifications

Product
Brand nameWOOSTER
Product colorTransparent

Questions about this item

How long do the 2 15/16 in. bristles stay firm when painting all day?

The 2 15/16 in. bristles are rated firm and use synthetic Micro Tip filament that resists softening during extended use with oil or water-based coatings.

Does the stainless-steel ferrule get hot or add weight during continuous brushing?

The stainless-steel ferrule adds minimal weight and does not conduct noticeable heat, keeping the brush balanced and comfortable for long sessions.

What handle grip do I need to control this 3 in. flat sash brush?

The natural wood sash handle is shaped for a pencil grip; no extra accessory is required to use the brush effectively.

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