The Elcometer 123 Surface Profile Gauge (part number E123A-M-) measures the peak-to-valley height of a blast-cleaned surface, in a similar way to the Elcometer 224 Digital Surface Profile Gauge. The degree of surface profile decides a coating's performance: too large and the amount of coating required increases while peaks risk remaining uncoated and allowing rust spots to occur, too small and there may be insufficient key for adequate adhesion, leading to premature coating failure.

The Elcometer 123 Surface Profile Gauge presses a sprung stylus into the valleys of the blasted profile and reads the peak-to-valley height against a fixed reference, giving a direct measurement on its dial. The Elcometer 123 Surface Profile Gauge measures over a range of 0 to 1000µm with a scale graduation of 2µm. Compact at 105 x 55 x 25mm and weighing 335g, the metric version is supplied ready for field use.

The Elcometer 123 Surface Profile Gauge conforms to ASTM D 4417-B, SANS 5772, SSPC PA 17, US Navy NSI 009-32 and US Navy PPI 63101-000, the standards used to verify surface profile in surface preparation and coating inspection. It is used by coatings inspectors and blasting contractors across corrosion protection, marine and industrial finishing work. Supplied by BAMR, South Africa's authorised distributor.