Measuring coating thickness on heat-sensitive substrates
This article describes technology available to measure the thickness of cured powder coatings on substrates other than metal, such as medium-density fiberboard (MDF) and plastics. It describes the working principle and benefits of ultrasonic coating thickness testing with handheld instruments.
Coating thickness gages that use ultrasonic measurement techniques are becoming increasingly popular in industries that work with heat-sensitive substrates such as wood, plastic, composites, and glass. These instruments support or replace destructive methods for measuring the thickness of cured powder coatings in a variety of industries including automotive, aerospace, manufacturing, and industrial finishing.