MEASUREMENT OF COATING THICKNESS: Part 2: Magnetic and electromagnetic methods

The main functions of any coating system are to provide decoration and protection. Whatever the individual's specific requirements — whether for corrosion proofing, improving mechanical or electrical properties, or for simply adding to the aesthetic quality of his product—the need for a reliable and economical method for measuring coating thickness is self‐evident. Such a method will frequently enable the user to achieve significant savings on materials costs, both in the production process and in maintenance work. It will also ensure an acceptable level of quality in the product itself, thereby reducing the company's commitment in respect of costly remedial after‐sales servicing.