Why a Paint Gauge is essential
B correcting your paintwork, it's very useful to know the condition of your paint. You don't know if the car's been repaired before by either respraying or corrective action and for that reason you need to practice caution.
Polishing is effectively removing fine levels of paint from your car's surface and therefore it's of course useful to know how much paint there is to play with; and how deep a scratch you can correct before causing irreparable damage.
If your car has been regularly polished, then a strikethrough - that is - going through the coloured paint on your car is a possibility; and on a lesser level, going through the clearcoat, leaving your paint dull and exposed to oxidisation.
FACTORY PAINT THICKNESS ON CARS
On average, most new complete paint thickness on cars will be around 120 µm.
However, this is just an average. If you would measure 10 brand new cars, and then calculate the average of each panel, you’ll end up with roughly 120 µm. On average the layers are reasonably equally divided in 3 layers of 40 µm thick.
However, this is just an average and paint thickness on some cars (mostly Korean and Japanese) can be 80...90 µm while on other premium models it can be up to190µm - as is found on many Mercedes.
+ Suitable for measurements on iron / steel and non-ferrous metals like aluminium
+ Accuracy: ±7μm from 0 to 199μm, ±(3%+10μm) from 200μm to 2000μm
+ Automatic identification whether metal is ferrous or non-ferrous
+ Measuring range: 0 to 2000 μm (for iron / steel) and 0 to 1000 μm (for non-ferrous metals like aluminium)
+ Operating temperature range -13F (-25°С) to 122F (+50°С)
+ Rubber protective cover
+ One standard and one ultraviolet flashlight
+ 2x uncoated metal plates for calibration (ferrous and non-ferrous) included