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Chemical Guys, Heavy Duty Clay Bar for Paint Prep & Decon, Black, 100 g

  • Based on 918 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon

Arrives Sep 16 – Sep 17
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Size: Heavy Duty


Style: Heavy Clay Bar Black


Features

  • Flex-Clay Technology.
  • Removes light paint grime, overspray and daily weather ware.
  • Works on paintwork, glass, plastic and metal surfaces
  • Easy to use
  • Smooth as glass feel
  • Flex-Clay Technology
  • Removes contamination, overspray and pollution
  • Works on paintwork, glass, plastic and metal surfaces
  • Easy to use
  • Smooth as glass feel

Description

The Chemical Guys Heavy Clay Bar is the safest and most effective way to remove embedded dirt from your vehicle’s paintwork. Flex-Clay Technology easily removes years of heavy overspray, rail dust, brake dust, pollution, and surface buildup for a smooth-as-glass feel. The unique elastic black detailing clay pulls off heavy and rough grime like a magnet. The advanced Heavy Clay Bar is designed to cleanse vehicles with years of stubborn buildup and pollution. The Heavy Clay Bar works great on paintwork, glass, plastic, and metal surfaces. Detailing clay safely removes overspray and impurities without damaging the surface. The Chemical Guys Heavy Clay Bar is the perfect choice for removing embedded residue from new and old vehicles. The Heavy Black Clay Bar is the safest way to cleanse virtually any painted surface. Great for removing debris before applying your favorite coat of carnauba wax or paintwork sealant. The Chemical Guys Heavy Clay Bar is non-abrasive and safe on aluminum, chrome, fiberglass, and all painted surfaces. Restore the smooth feel back to any car, truck, motorcycle, RV, and boat with the Chemical Guys Heavy Clay Bar. The Heavy Clay Bar is the perfect choice to remove the heaviest buildup from older vehicles. The non-abrasive detailing clay restores the smooth-as-glass feel to virtually any exterior surface. We designed the Heavy Clay Bar to gently cleanse the surface of stubborn grime for a perfect finish. The Chemical Guys Heavy Clay Bar works great on paintwork, plastic, wheels, glass, metalwork, and fiberglass. Perfect for cleaning specialty carbon fiber and Kevlar surfaces. The Heavy Clay Bar works best with Chemical Guys Luber for the ultimate clay bar experience. Simply spray Luber directly onto the surface and cleanse the panel using the Medium Clay Bar.

Material: Aluminum, Fiberglass


Grit Material: Clay


Item dimensions L x W x H: 4.72 x 2.36 x 0.39 inches


Brand: Chemical Guys


Grit Type: Medium


Brand Name: Chemical Guys


Number of Packs: 1


UPC: 816276019048


Number of Items: 1


Set Name: Case of 12


Global Trade Identification Number: 48


Item Highlight: Heavy-duty clay bar lifts heavy overspray, fallout and bonded grime from neglected paint, glass and metal


Unit Count: 1 Count


Manufacturer: Chemical Guys


Model: CLY_403


Part Number: CLY_403


Warranty Description: Customer satisfaction guaranteed.


Grit Type: Medium


Grit Number: 100


Compatible Material: Aluminum, Fiberglass


Item Dimensions: 4.72 x 2.36 x 0.39 inches


Item Weight: 0.1 kg


Material Type: Aluminum, Fiberglass


Grit Material Type: Clay


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sep 16 – Sep 17

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Nice
Size: Heavy Duty Style: Heavy Clay Bar Black
Nice
Reviewed in the United States on June 20, 2026 by Mario Hernandez

  • Highly recommend.
Size: Heavy Duty Style: Heavy Clay Bar Black
Highly recommend. Had overspray get all over my truck from construction site. These clay bars worked great. Now my paint is smooth again. Definitely lot of work.
Reviewed in the United States on January 3, 2026 by Chad D.

  • Very heavy clay for only the toughest contaminations.
Size: Heavy Duty Style: Heavy Clay Bar Black
My vehicle was covered in overspray when a building was repainted near my parking area. I tried a fine nankin clay sponge and the Meguiar's regular clay from their clay bar kit, both of which removed some of the paint but left the majority of it. This CG heavy clay removed all of the overspray after going over each panel twice with a fair amount of pressure. However, due to the clay being a heavy composition, be prepared to induce marring and light scratches to the surface. My vehicle is a '17 WRX, which is known for having soft paint, but the marring was quite significant. Fortunately I expected that result, and the claying step was in preparation prior to machine polishing and applying a ceramic coating. All of the defects were able to be removed using a medium pad with M205. So, I would only use this clay as a last resort if finer grades are not removing your contamination. ... show more
Reviewed in the United States on December 30, 2016 by Kim

  • Oil based paint overspray removal!
Size: Heavy Duty Style: Heavy Clay Bar Black
Works extremely well I had a horrible oil based paint overspray from a construction job all over my F350 this clay bar worked extremely well getting it off!!
Reviewed in the United States on July 15, 2026 by MrPlumber

  • Great for heavy contamination & wonderful for cleaning glass!
Size: Heavy Duty Style: Heavy Clay Bar Black
Works great on heavily neglected paint. BEWARE: THIS WILL INDUCE MARRING AND LIGHT SCRATCHING ON DARKER COLORED PAINT, IF IT IS SUCCESSFULLY PULLING HEAVY CONTAMINATES FROM YOUR PAINT! SO PLEASE MAKE SURE YOU DO NOT MARK THIS PRODUCT DOWN BECAUSE IT CAUSED YOU TO SCRATCH YOUR BEAUTIFUL BLACK PORSCHE. This is more or less a specialty clay for really bad, old, neglected paint. So if you are using this clay bar on paint, you are 99% guarenteed to be following this with a polish or light compound. Chances are, if it's this bad to start with - you're gonna need to polish it out anyways. I follow a black-clay job with Chemical Guys V38 or V36. Something. Also be sure to clean, knead, and dispose of this properly. It's hard to see dirt because of it's color, so be mindful of this. Simple procedures will give you good results. But expect to be polishing or at least using a paint cleaner afterwards to get rid of find scratches. I also want to point out that this works WONDERFUL when claying glass. No you will not scratch your glass. It handles rocks at freeway speeds, sand, the sun, acid rain, everything else - bird crap, sap, leaves, whatever. It could care less about the clay. In fact I use old no-longer-for-paint use clay when I am washing a vehicle on glass. Recycling old materials is always a good idea! Cost effective way of removing light water spotting and contamination. Glass cleaner and car-washing will *not* remove sap and bonded contaminates from glass, but this will. This is what gives glass that silky smooth feel again. Heavy water etching will need heavy treatment, such as a dedicated glass polish. But this with your soapy water will remove 99% of whatever is on your glass. ... show more
Reviewed in the United States on February 9, 2015 by Steve Boatman

  • Takes off overspray
Size: Heavy Duty Style: Heavy Clay Bar Black
Used this on a car with paint overspray and worked great 👍. I was surprised how easily it came off with this clay bar. I bought 3 more because it's a huge 1960s car, but I feel like it was well worth the money. Excellent product. Car looks great after using it. Perfect for cleaning paint.
Reviewed in the United States on June 26, 2024 by Jaime Hjelm

  • Clean your windows!
Size: Heavy Duty Style: Heavy Clay Bar Black
Great for overspray, especially on glass.
Reviewed in the United States on April 14, 2026 by Kona

  • Stick with the Blue/Gray Bars
Size: Heavy Duty Style: Heavy Clay Bar Black
Bought to remove overspray from a rust repair paint job I did. I have bought lots of chemical guys clay bars, but only the light and medium (blue and gray) bars in the past. I love those, but I honestly was not that impressed with this "heavy duty" clay. It seems really stiff and hard to knead compared to the lighter stuff, and didn't seem to remove many more impurities. I didn't notice any marring, but it was on pretty rough new clear so I can't be sure about that one. ... show more
Reviewed in the United States on January 26, 2016 by David S

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