




🧼 Unlock the secret to flawless rides — because your car deserves the VIP treatment!
The Chemical Guys CLY_403 Heavy Clay Bar (100g) uses advanced Flex-Clay Technology to safely and effectively remove heavy contamination like overspray, brake dust, and pollution from multiple surfaces including paint, glass, plastic, and metal. Non-abrasive and versatile, it restores a smooth, glass-like finish, making it an essential step before waxing or sealing. Highly rated and universally compatible, it’s the go-to clay bar for professional-grade vehicle detailing.






| ASIN | B00G3EAGKG |
| Best Sellers Rank | #4,305 in Automotive ( See Top 100 in Automotive ) #15 in Polishing & Rubbing Compounds |
| Brand | Chemical Guys |
| Brand Name | Chemical Guys |
| Compatible Material | Aluminum, Fiberglass |
| Customer Reviews | 4.6 out of 5 stars 3,699 Reviews |
| Global Trade Identification Number | 00816276019048 |
| Grit Material | Clay |
| Grit Material Type | Clay |
| Grit Number | 100 |
| Grit Type | Medium |
| Item Dimensions | 4.72 x 2.36 x 0.39 inches |
| Item Height | 1 centimeters |
| Item Weight | 0.1 Kilograms |
| Item dimensions L x W x H | 4.72 x 2.36 x 0.39 inches |
| Manufacturer | Chemical Guys |
| Material | Aluminum , Fiberglass |
| Material Type | Aluminum, Fiberglass |
| UPC | 816276019048 |
| Unit Count | 1.00 Count |
| Warranty Description | Customer satisfaction guaranteed. |
C**.
Highly recommend.
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.
W**S
Great prouvt
Fantastic- works as promised
D**P
Works pretty well, packaging is annoying, better options out there
I used this with CG Clay Luber on my Charger's Pitch Black (non-metallic) paint, and it worked pretty well. I didn't notice any scratches, but I wasn't looking very close, and the paint isn't in the best shape to begin with - lots of small scratches from poor wash technique and bad towels. Definitely works well to pull out surface contaminants! the bottom half of my car and some of the front bumper felt very, very rough to the touch. This pulled almost everything out and made it feel super smooth. Lost a star because of the packaging... Hard plastic container that the clay comes in is not air-tight, but the ziploc-style bag it comes in appears to be. That means that every time you take some out or put it back in, you have to open the bag, wiggle the plastic container out, which is a tight fit, open the plastic container, then put the clay in or take some out... doing all of this without dropping the clay itself can get a little frustrating. A slightly larger bag would make me feel a lot better about it. I guess it really shouldn't matter, as you should be able to work the clay back into usable form even if it gets a little dried out, but they definitely could have thought that through. That all being said, I'll probably move onto something like Nanoskin when this stuff runs out. Clay itself is just kind of a pain to work with.
W**I
Perfect.
Nice clay. I’ve dedicated it to windshield duty and only bought it over others because it has a neat little plastic container to store it in. You’d be amazed at what claying your windshield does. If you’ve never done it I highly recommend it! Or polish but I think clay is easier/better on glass. You clay your vehicle’s paint why wouldn’t you do the windshield?
D**E
1st time claybar user, astounding results
I have a "retro-bird" (Thunderbird) that, like any vehicle over the years, has collected a series of clear-coat scratches, discoloration, and lack of luster. I've had it detailed by a personal friend multiple times over the past 12 years, but the paint really needed a major "refresh". I began researching several "how to" videos on YouTube for auto finish restoration. I learned how to correct clear-coat scratches (with sandpaper, no less), use rubbing compound to remove discoloration, and to blend the clear-coat finish. Mind you, my lifetime experience ends with wash, wax, and protect. After correcting all of the blemishes, I ordered this Chemical Guys Medium Clay Bar after watching the company's "how-to" video. The detailer made it look easy as he demonstrated tips, techniques, uses, and explanations. I learned that the medium clay is their "go to" for most jobs where the finish is in relatively good shape but never had a clay bar before. I did purchase their lubricant, but.... opted not to use is as I was fortunate enough to be able to clay-bar the Tbird during a day of light rain. (note: rainwater is naturally clean, naturally "soft" leaving no hardwater spots, and offers a continuous lubrication and rinse action). You can really see and feel a difference in the clear-coat. It stripped out all of the rough contaminants, wax, oxidation from the finish. Lastly, I used Turtle Wax hard wax and laid down a heavy coat before buffing out. The end result was car-show competition finish! It took me about 4 days from start to finish, but the clay bar process was actually the easiest, fastest part of the process yielding the highest possible return on results. If you are like me and have never clay-barred a vehicle before, you owe it to yourself to strip the wax off, clay-bar, then use a good hard wax. you won't be disappointed. One last thing - I'd like to pass one of the most important tips the Chemical Guys passed along in the video. DO NOT USE THE WHOLE BAR OF CLAY AT ONCE. What I mean is, cut about 1/4 of the bar off and use that. If you DROP the clay-bar onto the ground, you cannot use it - throw it away immediately. It will instantly pick up and embed any grit from the floor, and will ruin your finish. Just cut another 1/4 of the bar and continue on. Trust me, I dropped two pieces during the process. If it had been the whole bar at once, I would have been sunk.
S**N
Great for heavy contamination & wonderful for cleaning glass!
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.
B**N
Amazing Results!
I never used a clay bar prior to buying this. It was on sale for prime day so I thought I would give it a try. I bought a used car a few months ago and noticed rough paint and a little light overspray on a panel. I bought the gray bar and the yellow bar kit with the spray. I could actually feel it working. As I started rubbing the bar on the paint it felt rough and then it slid across the paint like ice. It not only easily removed the roughness, it also removed the overspray. Amazing results and worth every penny. I do wish that the bar was bigger though. I only tore off a corner of it for my test instead of using the entire bar at once. It should be big enough to do the rest of the car but it would be nice to have more of it. I highly recommend this clay bar.
V**A
Great product, small quantity.
First time ever claying a car and I’m really impressed with the smooth results. I watched an old Chemical Guys YouTube video on the product before purchase where they were claiming you can clay 20 cars, which is insane considering I used half a bar on only half of a small Miata. I did drop it quite often but I still don’t see how this product could last more than 2-3 washes. Great first time purchase but I think it’s now being sold at smaller quantities (shrinkflation).
Trustpilot
2 weeks ago
4 days ago