Practical guidance for selecting instruments, understanding measurement methods, and improving inspection workflows.
ISO 2808:2019 is the umbrella specification for paint film thickness determination, bringing all measurement methods for wet film, dry film, uncured powder coatings and coatings on rough surfaces…
Acceptance of steel structure protective coatings is governed by SSPC-PA 2-2022 for spot count and pass/fail rules, and by ASTM D7091-22 for instrument operation. What a contractor needs…
ISO 19840:2012 specifies thickness measurement and acceptance criteria for coatings on rough steel surfaces. Like SSPC-PA 2-2022 it shares the 80/20 judgment logic, but differs in spot count,…
Automotive paint inspection uses an Fe/NFe dual-mode coating thickness gauge: it first auto-switches principle by substrate (steel or aluminium), then judges from the deviation of readings against the…
The US has no federal tint standard; front-side-window visible light transmittance (VLT) is set by each state, most commonly 35%, strictest 70%; because factory driver-vision glass is itself…
The hot-dip galvanizing industry expresses coating mass as “weight g/m2”, while a gauge gives a length unit; the two convert by zinc density (about 7.14 g/cm3, i.e. 1…
The conformal coating on a printed circuit board sits over copper traces and glass-fibre substrate; copper is a non-magnetic conductive metal and the coating is non-conductive, so measurement…
