Coating thickness gauges: Instruments or Gadgets?

Introduction Numerous devices are available for measuring the thickness of coatings. Unfortunately most prospective users are not instrument specialists and often experience difficulty in selecting the best device for the application. Due to lack of knowledge or time, moreover, he is often placed in the difficult position of being able to purchase only in order to eliminate an immediate problem and therefore is not able to fully assess future or continuing needs in parallel to this immediate and urgent problem.