IMPA: 510766

Knot Wire Cup Brush – IMPA 510766

This knot wire cup brush, IMPA 510766, is engineered for aggressive marine surface preparation and cleaning. The knotted wire construction delivers a powerful cutting action that quickly removes rust, mill scale, weld spatter, and old paint from steel surfaces. Designed for use on hulls, decks, and structural components, this cup brush is a vital tool for shipyards, maintenance crews, and marine chandlery operations.

The brush features high-tensile steel wires tightly twisted into knots, providing excellent durability and consistent performance even in the toughest conditions. With a 4-inch diameter and a standard 5/8"/-11 threaded hub, it mounts directly onto common right-angle grinders, offering a secure fit and ease of use. Whether you are preparing a surface for coating, cleaning weld seams, or removing corrosion, this knot wire cup brush delivers reliable results.

As part of the IMPA 51 Brushes & Mats category, this product meets the stringent requirements of international ship supply standards, making it a dependable choice for vessel maintenance and marine industrial applications.

Key Features

Technical Specifications

SpecificationDetails
Product TypeKnot Wire Cup Brush
IMPA Code510766
CategoryIMPA 51 Brushes & Mats
Brush Diameter4\" (100 mm)
Wire MaterialHigh-Tensile Carbon Steel
Wire TypeKnotted
Mounting Thread5/8\"/-11
Max RPM12,000
Compatible ToolsRight-Angle Grinders
Typical ApplicationsRust Removal, Surface Prep, Weld Cleaning

Frequently Asked Questions

What is a knot wire cup brush used for?

A knot wire cup brush is designed for aggressive surface cleaning and preparation on metal surfaces. It is commonly used to remove rust, mill scale, weld spatter, and old paint from steel, making it essential for marine hull maintenance and shipbuilding.

What is the maximum operating speed?

This 4-inch knot wire cup brush is rated for a maximum speed of 12,000 RPM. Always check the speed rating of your grinder to ensure it does not exceed the brush's limit for safe operation.

Can this brush be used on stainless steel?

This brush is made with carbon steel wire, which can cause contamination on stainless steel surfaces. For stainless steel applications, we recommend using a dedicated stainless-steel wire brush to prevent rust and corrosion from embedded particles.

What angle grinder size does it fit?

The brush features a standard 5/8\"/-11 threaded hub, which fits most right-angle grinders commonly used in marine and industrial environments.

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