Have you tried removing water spots, swirl marks or fine scratches from a new car lately? I can promise you can’t do it by hand anymore. The good old days are over. Simply put, the new clear coat finishes are super hard. They can resist minor scratching, swirl marks and water spot like never before, but they also resist hand polishing.
The solution is a tool that’s been around for nearly two decades, the Porter Cable 7424. It’s a buffer polisher that car enthusiasts have known about for years, and now it’s spreading to garages all across America and the world. The reason it’s so loved is that it makes easy work out of most minor coat problems, even if you have one of the new high-tech ceramic finishes.
The Porter Cable Polisher, including the 7424 and the newer 7424xp, are dual-action polishers. This simply means that the polishing mechanism orbits to mimic hand polishing. It’s different than a high-speed buffer that operates off of a direct drive center spindle. The orbital action of the Porter Cable machine completely prevents symmetrical buffing marks, paint burns and the other types of damage associated with high-speed buffers. If you use the 7424 as intended, you will never have any issues, even if you have never used an electric polisher before.
This type of electric polisher closely mimics the motion of circular hand polishing. Imagine being able to make 2,500 to 6,000 tight hand circles in a single minute. That should give you a pretty good idea of how this machine does its job. Basically it works just like you do, only at super-human speed. Plus, it never gets tired!
If you have previously owned a car waxing machine that made a lot of racket, but did little else to fix the damage and restore shine, you will appreciate the brilliance of one of these buffing machines. It has all of the power needed to get the job done, yet it’s small enough and light enough that it’s easy to use.
The secret to using a dual action polisher with shining results is choosing the right polish and polishing pads for the job. Basically polishing pads come in three grades: cutting, polishing and finishing. A cutting pad is coarse and used to remove damage. A polishing pad has a bit if coarseness, but not much. It’s used to remove very minor damage and restore full gloss. A finishing pad is very soft. It’s used to polish without cutting and to apply waxes and glazes.
As you might expect, the foam pads do not work by themselves. You need to use a polish with the pad. Like the pads, paint polishes have cut levels. For removing defects you will be using a polishing compound. Find a polishing compound that will remove 2000 to 2500 grit sanding scratches. That’s what you need to knock down heavy swirls marks, water spots and fine scratches.
Let me save you a lot of time. Try Meguiar’s Ultimate Compound. It’s a top rated product and it’s safe for all clear coat finishes. You’ll find it at most auto parts stores. The reason I recommend it is because it uses a new micro abrasive technology that polishes without scouring the finish.
After using Meguiar’s Ultimate Compound you might be fooled into thinking you’re finished. That’s because your paint will look great. Trust me, though, you’re not finished. If you take your car out in the sunlight you’ll see a slight haze in the clear coat. You can easily finish the job with a fine polish. The car polish I recommend for this job is Klasse All-In-One. This been around for a long time and it makes cars shine like crazy.
If you have a dull paint finish caused by swirl marks, scratches and water spots, the best solution is a Porter Cable 7424. It’s the best buffer polisher on the market today. Don’t be fooled by the cheap imitations make in China. Buy American!
To learn how to use abuffer polisher, including the Porter Cable 7424 buffer polisher by visiting David Bynon’s Guide To Detailing blog, a trusted source for quality auto detailing information since 1999.