Clay towels offer a number of advantages when it comes to removing bonded contaminants from exterior automotive surfaces. While the use of both tar and iron removers undoubtedly makes the decontamination process quicker and safer, the use of a clay bar is still required in many cases to ensure complete contaminant removal. And detailing clay, as we all know, isn't the easiest thing to use. In particular, it needs to be warmed up before use to make it soft and pliable (if it's cold and stiff it will feel grabby and inflict marring). Also, it has to be thrown out if you accidentally drop it (because dirt to sticks to it and can't easily be washed off). Furthermore, using clay bars can also be relatively expensive if you do a lot of detailing, as there is a limit to the amount of contamination they can absorb before they have to be replaced.
The Atomiza Clay Towel is designed to replace the clay bar in the decontamination process. By using a special kind of polymerised rubber (bonded to a microfibre towel), it is able to dislodge bonded contaminants when rubbed over exterior automotive surfaces, and thus mimic the result that a clay bar produces, i.e. perfect smoothness. Furthermore, it does this without needing to be warmed up first (or kept warm during use), and it can be rinsed completely clean with running water, meaning that it not only has a far greater life expectancy than a clay bar (up to five times as long), but also does not have to be thrown out if you accidentally drop it. However, perhaps the biggest benefit the Atomiza Clay Towel offers is a significant time-saving; on a like for like basis (i.e. mild clay vs. fine towel) it gets the job done much faster.
Are there any downsides to using an Atomiza Clay Towel? The answer is yes; as is often the case in life, gains in one area are sometimes countered by losses in another. While it is easier to use and works much faster than a clay bar, the Atomiza Clay Towel does tend to leave a little more marring behind if your technique isn't spot on. With a little practice this almost becomes a moot point in the case of the fine grade towel, but it's important to bear in mind to start with, because after your first few attempts you may need to do some corrective polishing. And please note, the medium grade towel is extremely abrasive (more so than many aggressive clay bars); it works brilliantly but does tend to inflict a significant amount of marring, even if your technique is good, so should only be used when a subsequent machine polishing step is planned.