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Originally Posted by spiff72
How does a clay bar work? What keeps it from scratching if you run it over a piece of dirt? How long does it last?
Sorry for the simple questions, but I have never used one before!
Thanks!
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My father introuced me to clay bars and I'm a believer now, at least for preparing a new vehicle for its first wax and for restoring the look of an older vehicle (like my '92 Corolla that doesn't get washed as often as it should), removing things like road tar and the like that are often so difficult to remove.
The clay bar is a sticky, low abrasion clay -- think Silly Putty but stickier. It is not used on the paint without some sort of liquid product to allow the clay to glide over the painted surface. Any grit, tar, etc. sticks to the clay as it's *lightly* rubbed against the paint and the grit gets trapped into the clay itself. You do not clay bar a dirty car -- it should be freshly washed or detailed and I find it should be dry, as well, otherwise the water mixes with and dilutes the liquid lubricant that works with the clay.
Most clay bar instructions suggest kneading the bar periodically, at least once per each body panel, to ensure you're working with clean clay. And if you drop it, it's over -- the stuff it'll pick up from being dropped will scratch paint, unless you manage to drop it on grass or your jeans or something.
Each product indicates how long it'll last. The Mother's Clay Bar I use indicates it's good for 2 or 3 normal sized cars. I figure the bar I have is good for one more clay bar use on my Ford Escape Hybrid, but thankfully clay bar application isn't something you necessarily need (or want) to do often. It's just a good prep for waxing and when you know your paint's picked up grime (run your fingers across your paint....feel the little "catches" as grime hits the ridges in your fingerprints? After clay bar application, your fingers will glide over the paint as if it were wet, clean glass.)
Sites to check out regarding detailing clay bars:
And there's
more on Google...