Wooster Brush 4175-1 1/2 Flat Sash Brush 1.5 Inches

Product Description

The WOOSTER BRUSH 4175-1 1/2 is a 1.5-inch flat sash brush engineered for precise, controlled paint application across a wide range of coating types. The bristle blend combines nylon and polyester in a firm formulation marketed under the Ultra/Pro Mink Firm line. This construction supports consistent control on trim, window sash, molding, and detail work where edge accuracy matters. The treated maple wood handle provides a stable grip during extended use. A round rust-resistant steel ferrule secures the bristle fill and holds up against repeated cleaning with water- and solvent-based products. Painters, contractors, and finishing tradespeople are the primary users of this brush type.

This brush is suited for residential and light commercial painting applications. It performs on interior trim, exterior sash, doors, and similar detail surfaces. The firm nylon/polyester formulation is compatible with all coatings, including latex, oil-based, and alkyd finishes, making it a single-brush solution for crews working across multiple coating systems on the same job. It is sold in packages of 6 units, making it practical for stocking in a shop or supply kit.

Key Features

• Firm nylon/polyester bristle blend for consistent control and clean edges
• 1.5-inch flat sash profile suited for trim, molding, and window sash work
• Compatible with all coating types including latex, oil-based, and alkyd
• Treated maple wood handle for grip stability and durability
• Round rust-resistant steel ferrule for long service life
• Sold as a package of 6 brushes per unit

Compatibility

Designed as a general-purpose flat sash brush compatible with all coating formulations, including water-based and solvent-based paints, primers, and stains.

Installation Notes

No power tools or mechanical installation is required for this hand tool. Before use, flex the bristles and remove any loose filaments. Clean the brush immediately after use with the appropriate solvent for the coating applied — water for latex, mineral spirits or paint thinner for oil-based products. Store flat or bristle-up to preserve the sash profile.