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McKee's 37 Universal Detailing Clay 4 oz.

Clay your way to a silky smooth paint finish!

McKee's 37 Universal Detailing Clay is a special clay compound that safely and quickly removes contaminants that penetrate below the clear coat surface. Detailing clay is the professional detailer’s secret to glassy smooth paint.

Clay works by grabbing foreign particles and pulling them out of the clear coat as you rub the bar across the paint surface. Washing only removes surface contaminants, but your vehicle may still have microscopic particles embedded in the clear coat. These particles are hard to see individually, but together they can cause dull, rough patches that detract from the paint’s appearance. McKee's 37 Universal Detailing Clay will remove these contaminants and restore a glassy smooth finish to your vehicle. Once wax is applied, the paint will feel silky smooth and have a bright, glossy shimmer.

Spray a generous amount of lubricant onto the paint and slide the clay bar back and forth
Spray a generous amount of Universal Clay Lubricant onto the paint and rub the clay bar back and forth until it glides freely
McKee's 37 Universal Detailing Clay removes:

  • Brake dust
  • Industrial pollution
  • Rail dust
  • Tar
  • Bugs

If contaminants are allowed to remain lodged in your vehicle’s paint, they create tiny openings in the protective clear coat. Over time, air and water can enter these openings and cause widespread oxidation. Claying your vehicle periodically will prevent paint system failure and enhance the performance of your favorite wax by creating an ultra-slick surface.

Detailing clay can also be used to remove stubborn debris from wheels. Wash them first using McKee's 37 Foaming Wheel Cleaner Gel. Spray McKee's 37 Universal Clay Lubricant over wheel surface and clay your wheels just as you would clay the paint.

Since its introduction, detailing clay has been priced according to its limited demand. Now that the use of clay is more widespread, McKee's 37 Universal Detailing Clay can be offered at a price that professional detailers and at-home perfectionists will enjoy. Experience the difference clay makes on your own vehicle with McKee's 37 Universal Detailing Clay.



Use McKee's 37 Universal Detailing Clay on a freshly washed vehicle. Spray area to be clayed with McKee's 37 Universal Clay Lubricant. Gently rub the clay bar back and forth across the wet surface. Clay will grab initially. Continue moving the bar until it glides freely. Wipe off clay residue. Reshape bar often to reveal clean clay as you work. The secret to preserving and extending the life of the clay material is to spray the clay bar with lubricant prior to storing it in its plastic case.

4 oz. bar

Please refer to our Detailing Clay How-To for tips on detailing clay use and accessories.

McKee's 37 Universal Detailing Clay 4 oz.

Our Price: $12.99
Item ID: MK37-720
Availability: Usually ships the same business day
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10 Reviews
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30% Recommend this product (3 of 10 responses)
By Joe
Chicago, IL
September 18, 2016
Good clay bar!
I just tried it on my first car and be warned its not a "malleable" as some bars and seems a bit "stiff" but does the job none the less.
ProsAffordable Does a great job comes with a case
Consdifficult to knead after moving to another panel.
By Justin
Henderson, NV
August 8, 2016
Works great.
This was my first clay bar experience. I was initially looking to my the Pinnacle XTM clay but found that it was discontinued so I bought this and I also bought the clay lube that if for this bar. It worked well and really cleaned up the old my on my 82 silverado. Te only problem I had which may be more associated to the extremely hot weather out here in vegas is that I really had to burn through the clay lube to keep the bar from sticking, but I was probably doing this project in much too hot of weather in my driveway and the lube was evaporating too quickly, not a product flaw, I just picked the wrong time to do this job. Here are a couple photos of the very first 2x2 square I did.
By St.
Norfolk, VA
February 3, 2016
DP Clay
Cheaper alternative to other clay.
ProsGood clay for a much cheaper price.
By Ted S.
May 17, 2011
Cleans well
This is the first clay I've ever used, and with Optimum No Rinse as the clay-lube, makes a smooth paint. The clay seems to pull out a lot of strange stuff. I like this as my primary medium grade clay.
By Brian
October 9, 2010
Removes most, leaves itself behind.
I've used a few slightly less expensive claybars and this one is a bit different. It removes more defects, faster, with less effort. It also leaves a good deal of itself behind, even when using generous amounts of DP clay lubricant. Overall, I like it.