Wooster Brush Company
Wooster Brush Company W3973-3 3" Flat Sash Firm Paint Brush
3-inch flat sash brush with firm polyester bristles for all paints on smooth or medium surfaces
- ColorGold (Bristle)
- Firm polyester bristles hold heavy coatings without sagging
- 3-inch width covers trim and sash in fewer strokes
- 11/16-inch thickness carries more paint per dip
- Beavertail plastic handle gives comfortable control on vertical surfaces
- Gold synthetic filaments work with oil and water-based paints
Wooster 3" Flat Sash Paint Brush
The Wooster W3973-3 is a 3-inch flat sash brush designed for precise cutting-in and trim work. It features gold-coloured polyester bristles with a firm stiffness rating. The beavertail handle is made from plastic for a comfortable grip during extended painting sessions.
Ideal for detailed trim and edges
This brush suits decorators and DIYers applying any paint or coating to smooth or medium-textured brick, concrete, drywall, metal or wood. Its firm synthetic filament holds shape well for sharp lines. Buyers needing a softer flagged tip for ultra-smooth finishes or a wider wall brush for large expanses should consider other options.
Firm polyester bristles for control
The 11/16 in bristle thickness and 2 11/16 in length deliver a firm spring that resists flattening under pressure. This stiffness is the key spec determining whether the brush provides the control required for accurate sash and trim applications with oil or water-based paints.
Highlights
- Firm polyester bristles hold heavy coatings without sagging
- 3-inch width covers trim and sash in fewer strokes
- 11/16-inch thickness carries more paint per dip
- Beavertail plastic handle gives comfortable control on vertical surfaces
- Gold synthetic filaments work with oil and water-based paints
Specifications
| Brand | WOOSTER |
|---|---|
| Color | Gold (Bristle) |
Questions about this item
Does the 3 in polyester brush need a specific handle or extension pole to reach high walls?
The brush has a built-in plastic beavertail handle; it works hand-held or can be fitted to a standard threaded extension pole if you own one.
Will the firm 11/16 in thick gold bristles load enough coating when I switch between oil and water-based paints on the same job?
Yes, the synthetic polyester filaments are rated for all paints and coatings, so they hold both oil and water bases without swelling or shedding.
After the first strokes on smooth drywall, how can I confirm the 2 11/16 in bristle length is laying down an even film?
Check for a uniform, streak-free wet edge with no brush marks; the firm stiffness and full 3 in width should give consistent coverage in a single pass.
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