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paint thickness

Posted by ben smith 
paint thickness
January 03, 2005 03:51AM
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I know paint thickness guages measure paint thickness. How can you tell if a panel has been repainted if it is stripped down to bare metal and then repainted? Wouldnt it read factory specs if the painter did it correctly? Or is it immpossible to duplicate oem paints?

thanx Ben Smith detailing
707.523.2900</HTML>
Re: paint thickness
January 03, 2005 07:09AM
<HTML>If a fender or part of the car has been stripped down to bare metal and repainted what difference would it make to you as long as there was sufficient paint on the car?

In fact, few cars today in the aftermarket get stripped down. A damaged part is more often than naught replaced the primed and painted like new.

The paints used in the factory are thermal curing paints that have to be heated to over 400 degrees to cure. Without the heat they will not cure.

In the aftermarket they use paints that do not require this type of heat to cure so the paint is different and you cannot duplicate OEM factory paint.

Regards

Bud Abraham</HTML>



buda
Re: paint thickness
January 03, 2005 02:59PM
<HTML>The most important parts of any refinish work is the use of either an acid primer or something like ZeroRust applied to the bare metal before surface primers are applied.

The second is "correct" clear coat film build, IE, no less than 1.5 and no more than 3 mil of clear.

Too little and not enough UV blockers, too much and it will evenutally crack due to thermal stressing that paint films experience in normal exporsure to heat and cold.

Ketch</HTML>



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