How is paint thickness measured?
Traditionally a destructive test method is used to determine paint thickness. Today, the primary purpose of ultrasonic testing is to non-destructively measure the TOTAL thickness of the paint system, typically in the range of 3 to 5 mils (75 –125 μm).
What is the thickness of 1 mil of paint?
1 mil is equal to 1 one-thousandth of an inch (25 microns). The mil thickness of a coating not only effects the appearance of a coating but also the performance and protective qualities. A coating with a mil thickness that is too thin may have less than 100% coverage leaving the substrate vulnerable to corrosion.
What are paint meter readings?
Prerequisite: A paint thickness gauge (aka paint depth gauge) is used to measure the thickness of a vehicle’s paint job to determine whether or not a car has received paintwork after it left the factory (either due to a prior accident, paint damage, etc).
How do you measure thickness?
Dry film thickness (DFT) can be measured using two methods: destructive thickness measurement, where the coating is cut to the substrate using a cutter; and non-destructive coating thickness measurement, using techniques which do not damage the coating or the substrate such as magnetic, magnetic induction and eddy …
What is a good paint thickness?
A typical factory paint job will measure between 4.0 mils and 6.0 mils. The clear coat will generally measure between 1.5 and 2.2 mils thick. The alternative measurement is called a micron.
What is normal paint thickness?
Thickness usually ranges between 1.5–2.0 mils (35–50 microns). It is the final original equipment manufacturers coating applied to a vehicle to protect the (base) color coat from a hostile environment while providing both depth and a durable, glossy appearance.
How thick is a coating of paint?
In the U.S. the thickness of paint is expressed in mils (one mil equals 1/1000 of inch). The rest of the world expresses coating thickness in microns (1 micron = 1 millionth of a meter and 25.4 microns = . 001” inch or 1 mil).
What is a good car paint thickness?
The average factory paint job on a modern vehicle averages about 4-5 mils (thousandths of an inch) of total paint thickness, but some are closer to 3 mils. This usually is comprised of 4-5 different layers, with the top layer being the clear coat and accounting for roughly 1.5 mils.
What is the purpose of a paint thickness gauge?
A thickness gauge is an essential quality assurance tool when anodizing, galvanizing and applying zinc coating to metallic surfaces. A thickness gauge also is used to measure body paint thickness and uniformity on pre-owned cars, revealing repainted spots, identifying hidden damages and exposing undisclosed accidents.
Why to use a paint/coating thickness gauge?
A coating thickness gauge (also referred to as a paint meter) is used to measure dry film thickness. Dry film thickness is probably the most critical measurement in the coatings industry because of its impact on the coating process, quality and cost.
What is a paint thickness gauge (PTG)?
A Paint Thickness Gauge (often abbreviated to PTG, and also called a Paint Depth Gauge) is an electronic device that measures the distance between the body-panel and the sensor. This way you can measure the thickness of the paint.
How is Paint thickness measured?
How does it work. The paint thickness gauge has a sensor that sticks out of the bottom of the device, or is connected via a wire with the device. This sensor is than put on the surface of the panel you want to measure. You place it perpendicular to the surface. The device will then measure the distance between the body panel underneath the paint,…