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Clay is point less unless you are gonna mop after tbh as all you are. Doing is stripping the paint
Of any polish and debris !!!! Be carfull a little knowledge is a dangerous / costly thing
I totally agree, a little knowledge is dangerous
I fail to see how using a clay bar is pointless, dangerous or costly.
It surely depends on what you want to do and how far you want to go. If the paint is covered in crud your going to need a clay bar to get rid of it. Whatever polish you apply if you haven't used a clay bar first will be pointless as your polish is sat on the crud not on the paint.
You can then use a cleaning compound by hand then apply polish and wax. It will give you a finish, it might not be perfect and will be hard work but it certainly won't be pointless.
Sure you can have the car mopped but you can only do this so many times.

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i have been and rectified a number of paint jobs where people have set about their pride and joy with out prepping for use of the clay bar 1st ( chemical strip ).....and then clayed a car with just water NOT a suitable float solution...thus resulting in abrasion damage ..
as far as mopping goes yes i agree if you are using cutting compounds BUT things have moved on a bit ,micro burnishing machine compounds actually roll over the scratches and burnish the edges of the defective de lustred areas ..thus softening the edges of the scratches that prevent light refraction ( shine )..and are far more gentle on the paint ..
just trying to prevent people damaging there pride n joy......dale