Quote:
Originally Posted by ShawnM
Just out of curiousity, has anyone really noticed a big difference after the clay bar. Ive used it a couple times on my car and once on the wifes car and have seen absolutly no difference.
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In most cases, you will see no difference, unless you are removing overspray or other obvious types of contaminants.
Clay is used to remove tiny particles that are stuck in your paint (iron oxide, rail dust, etc). Most of the time, you can't see them, unless they are rusting. That becomes more obvious in white paint.
You should
feel the difference, however. Before claying, you may notice a gritty feel to the paint as you slide your hand acrossed it. After claying, it should be smooth as glass.
Claying is mostly about paint maintenance and not about looks (with few exceptions, like overspray). Similar to changing engine oil.
That said, you should be claying based on feel...if your paint is as smooth as glass, you probably don't need to clay. Also, you may need to clay some areas where contaminants tend to accumulate more than others (roof, tailgate, hood, trunk, etc.). My friend's Magnum's tailgate was like sandpaper before I clayed it, but the rest of the car was fine. I'm guessing that the turbulence behind the vehicle and possibly contaminants from the exhaust caused this.
Also note that this sort of stuff cannot be removed with polish. I know, because I tried polishing that tailgate and it made no difference. Claying took it off in three passes.