The Infra-red spectrum of the binder of a product can be determined by an FT-IR spectrophotometer. A small (paint) flake or some droplets of the wet product are sufficient to obtain an accurate infra-red spectrum to identify the used binder.
The infra-red spectrum is a graph presenting the absorption or transmission of the radiation as a function of the applied energy or wave length.
The word fingerprint is frequently used for characterising a paint, and often only the infra-red spectrum is specified. In other cases (standards ISO 20340, NORSOK M-501, EN 10290, Shell DEP 30.48.00.32, Enercon QS tow 30-6b, ISO 15741) the infra-red spectrum is part of the fingerprint (the (chemical and physical) characterising of a paint).
FT-IR is used as an important instrument for trouble shooting to identify or exclude a specified (type of) coating.
Over the years, the demand for paint testing at high pressure and temperature in combination with corrosive gases increases. In various standards and specifications such as ISO 15741, EN 10289, EN 10290, ARAMCO 09-SAMSS-067 APCS 27, [...]