Do I need to clay ?

D

db2

New member
I neglected my car for quite some time now. Every time i wash i feel the debri under the rear bumper and underside of the car, I used Klasse AIO on the car about a year ago but do i have clay these areas or can i just use the AIO by itself when I do the whole car again soon.
 
Perform the Sandwich Bag Test:



Place your hand in a sandwich bag. Using your finger tips feel for particles (contaminates) in the finish. If you can feel these contaminates, then you need to clay. If not, pass on claying for now.
 
If you do a lot of driving then you definitely need to clay. Hot brake dust comes of other cars all the time and will land on yours. Polution in the air is a big cause of the reasons you need to clay. If you aren't claying a daily driver twice a year then you really need to get it done. I believe that daily drivers need to be clayed at least once a year and most need it more than that.
 
So much has to do with the local environment, and what the vehicle has been subjected to...



Most cars coming into my Central Indiana shop need 'some' claying to remove minor industrial falllout.



But, when at Meguiar's HQ (Irvine, CA) last week, every car I touched had 3-4 times as much 'crud' that needed to be clayed. I've found the same to be true for Chicago area cars.



OTH, I just completed an 18 month old Guard's Red Carrera, with only 3,300 miles (a garage/track queen) that had extraordinary issues that clay helped, but didn't completely solve... but, oh, it's RED now!



Use the baggie test, with lubrication. It is a no brainer.



C240: "Every time i wash i feel the debri under the rear bumper and underside of the car"



Sounds like you might have tar and other road crap, that could best be removed (first) by a 'bug and tar remover' or some other type of solvent, b/4 you ruin a clay bar on it. Just a thought.



Jim
 
Ok, I did a detailing job today, and well I was scared when I felt all the stuff I was running the chamios over!



It felt like I was running it over someones un-shaven face!



Well after 2 WHOLE clay bars later, I got it clean. The one section on clay was dirty in about one swip along the middle of the quaterpanel.
 
This weekend i will get down under the rear bumper and the pannel below the door and examine the contaminents. I have some meguiars paint cleaner i will try this on it and go from there.
 
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