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A Hunker report highlighted a $24.98 DeWalt knotted wire-brush attachment sold at Lowe’s as one option for stripping old paint from metal outdoor chairs. The product had a 4.9 out of 5 rating from 85 users at the time of the report, but a restoration project shared by two hobbyists showed that the brush can heat and smear paint, and it may leave metal needing further finishing.
A $24.98 DeWalt knotted wire-brush attachment listed at Lowe’s could help remove old paint from metal outdoor furniture, but a chair-restoration project cited by Hunker shows the tool has limitations. The attachment had a 4.9 out of 5 rating from 85 users when Hunker reported on it; that customer rating does not establish how well it will work for every surface or project.
The product is called a DeWalt 3-inch Knotted Angle Grinder, though it is a brush attachment rather than a standalone angle grinder. Hunker reported that it was priced at $24.98 at Lowe’s and works with any 3-inch angle grinder that has a 5/8-inch arbor. The price and availability reflect the report and may have changed.
Hunker cited a post by Tammy and Ron Young in the Facebook group “Metal Lawn Chair Restorers, Artists, and Aficionados, United.” The couple used a knotted wire brush to strip layers of paint from old metal chairs before repainting them. They described the method as imperfect: the brush generated enough heat to melt some paint and spread it across the surface, although they continued and obtained what Hunker characterized as acceptable results.
A knotted brush has wire bristles twisted into bundles, making it more aggressive than a crimped brush with looser, more flexible bristles. According to Hunker, that action can remove rust and paint and clean tough surfaces, but it can also leave metal rough. The surface may need additional work with a less aggressive brush or sander. A stiff brush may also be less effective on curved areas and in corners.
A Faster Strip With Trade-Offs
For people restoring metal patio chairs, the attachment offers a relatively inexpensive option for removing stubborn coatings with an angle grinder they already own. Its aggressive brushing action can make it useful when paint is layered or rust needs to come off, but speed alone does not make it the right choice for every makeover.
The reported heat and paint smearing matter because they can add work rather than eliminate it. A rough finish may require sanding or another finishing step before repainting, while missed contours and corners may need hand work. The customer rating is a snapshot from 85 users, not a guarantee of performance on a particular chair, coating or metal.
Material compatibility and personal safety also affect whether the tool is suitable. Hunker cautioned against using a carbon-steel brush on aluminum or stainless steel, saying it can cause corrosion. The high-speed action can throw sparks and fragments of paint or metal, making eye protection necessary. Users should follow the grinder and brush manufacturers’ instructions and use appropriate protective equipment.
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How the Chair Project Tested It
The product came to attention through a practical restoration example rather than a product launch. Tammy and Ron Young shared their metal-chair project in a specialist Facebook group, where they described using a knotted brush to remove paint. Hunker connected that approach to the DeWalt attachment sold at Lowe’s, while noting that the brush is designed for an angle grinder and is not itself a bench grinder.
The couple reportedly would have preferred sandblasting, but found it too expensive. They also said the knotted brush lasted longer than the “blue pads” they tried; Hunker suggested those pads were probably blue zirconia flap discs, but the exact product was not confirmed. The account does not establish that the DeWalt attachment was the exact brush used in their project.
Hunker’s broader guidance was that a crimped wire wheel is generally more suitable for DIY paint removal because its bristles are more flexible. That is a general recommendation, not a finding that a crimped brush will be best for every furniture design or coating. The article also cautioned that knotted brushes may be a poor fit for paint removal from wood.
“The knotted brush generated enough heat to melt the paint they were trying to remove and smeared it around.”
— Tammy and Ron Young, as described in Hunker’s report
Price, Fit and Results Vary
The report does not establish whether the $24.98 price, Lowe’s stock or the 4.9-star rating remains current. The rating was based on 85 user reviews at the time of Hunker’s report, and the source does not provide the review dates or a breakdown of users’ projects.
It is also unclear whether Tammy and Ron used this exact DeWalt attachment or a different knotted brush, and their account does not specify the chair metal, paint type, grinder speed or detailed finishing process. Those factors can affect how much paint comes off, whether heat causes smearing and how rough the surface becomes. Hunker’s report does not provide a controlled comparison with crimped brushes, sanding or sandblasting.
Check the Tool Before Buying
Anyone considering the attachment should check Lowe’s current listing for price, availability and compatibility, then confirm that their angle grinder meets the stated 3-inch brush and 5/8-inch arbor requirements. The brush’s carbon-steel bristles should not be used on aluminum or stainless steel, according to Hunker.
Before starting, users should consult the tool and attachment instructions, wear eye protection and other protective equipment specified by the manufacturer, and account for sparks and flying debris. A small test area can help reveal whether the brush is overheating the coating or leaving an unwanted texture. For broad, contoured or delicate surfaces, a crimped brush or another removal method may be more appropriate. The final choice depends on the furniture’s material, coating and desired finish; Hunker’s report does not identify a single method as suitable for every restoration.
Key Questions
Is the DeWalt product a bench grinder?
No. The 3-inch DeWalt knotted brush is an attachment for a compatible angle grinder. Hunker reported that it fits 3-inch angle grinders with a 5/8-inch arbor.
What was the reported Lowe’s price and rating?
Hunker reported a price of $24.98 and a 4.9 out of 5 rating from 85 users. These figures may have changed since publication.
Can a knotted wire brush remove paint from outdoor chairs?
It can remove paint, but the brush is aggressive and may create heat that melts or smears a coating. It can also leave a rough surface that needs further finishing.
What safety and material precautions apply?
Hunker advises against using a carbon-steel brush on aluminum or stainless steel because of corrosion risk. Wear eye protection and follow the grinder and brush manufacturers’ safety instructions; the high-speed tool can throw sparks and fragments.
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