What's a safe, workable thickness? (microns and mils)
I've read paint thickness on factory paint that have been all over the board, instead of looking for a specific number, I look for a uniform number.
For example the 2007 Impala Rental Car I took to the
2010 Mobil Tech Expo to demonstrate Damp-Sanding Technique measured pretty uniformly in the 7.0+ range.
That is I could easily measure places on the hood that would read,
7.6 mils
7.8 mils
7.4 mils
7.6 mils
7.7 mils
And so on...
I found this on the trunk and on the roof also. I don't remember measuring the doors or sides of fenders as this was a very busy show.
If I see a consistent range this gives me confidence that I'm working on factory paint that someone else hasn't compound in the past using "Rock-in-a-Bottle" compound.
We, or I guess I should say I, sanded down the entire hood of the Impala 3 times and then did some isolated areas on the hood and the trunk lid twice on one side and once on the other side to get it to match before returning it.
Never saw any black paint on my pads...
rops:
As far as using mils compared to using microns, it's really relative and as long as you can relate to it then whichever you're more comfortable with is the way to go. That is if your PTG measures both, if your PTG only measures in one measurement type, then you go with that one.
