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COATINGSPRO SEPTEMBER 2016 29 them to verify the accuracy of coating thickness gages. e importance of what we learned from the nuclear industry cannot be understated. is emphasis on quality has become the foundation of the coatings industry as we know it today, and it extends well beyond power generating facilities. Back in the 1970s, a coatings inspector only had a handful of gages to monitor coating work, including whirl- ing psychrometers and analog surface temperature thermometers to monitor ambient conditions, visual comparators to assess surface profile depth, written definitions of surface cleanliness (with references to the Swedish Pictorial Standards), wet film thickness gages, magnetic pull-off or analog gages for measuring coating thickness that had a variety of limitations, and holiday detectors for lining continuity inspec- tion. It is very interesting to look at the advanced technology available today and how it has influenced the way coating inspectors verify quality. Fast forward again. Facility owners began to recognize the inher- ent costs associated with premature coating failures and the resulting impact of corrosion/substrate deteri- oration, and a greater effort was expended to prepare more thorough, performance-based specifications. For coatings projects, this included coating system qualified products lists, proper surface preparation to match the coating system requirements, limitations on ambient conditions and surface temperature during final surface preparation and coating application, thickness ranges for each coat, and in-process inspection to verify conformance with the specifi- cation and the coating manufacturer's requirements. Coatings also became more sophisticated as zinc/epoxy/ urethane coating systems applied to blast-cleaned steel replaced traditional three-coat lead alkyd systems applied to mill scale. Given the level of sophistication of these multicomponent products and the fact that they were not " forgiv- ing" coatings, the industry began to recognize the need for overall quality improvement and began to look at total quality management processes. is included certified contractors with processes in place to control the quality of the work as it proceeded, quality assurance inspection (observa- tion) by owners or independent third party agencies, third party inspection company certification, and certified Inspector's Corner n N o calibrat ion adjustment required for most applications – measure right out of the box! n Tough probes, robust housing and strong two year warranty on gage body and probe n All models include memory, USB port, H iLo alarm, f ast measurement mode and Certificate of Calibration n Includes PosiSoft suite of software for viewing and reporting data n Advanced models connect to iOS or Android smart devices Co at in g Th ic k n e ss Gage s Simple. Durable. Accurate. 1-800-448-3835 www. defelsko.com DeFelsko Corporation l Ogdensburg, New York USA Tel: +1-315-393-4450 l Email: techsale@defelsko.com Award Winning Compatibility! The PosiTector gage accepts ALL coating thickness (6000/200), surface profile (SPG/RTR), environmental (DPM), ultrasonic wall thickness (UTG) and Shore hardness (SHD) probes. Wr i te in Re ad e r In q u ir y #34