Man-made Spectra

Man-made materials encompass synthetic and manufactured substances that do not occur naturally — paints, coatings, plastics, resins, adhesives, textiles, and construction products. Because these materials are engineered with specific chemical compositions, their spectra carry distinctive signatures that make spectroscopic identification both possible and practical.

Synthetic material spectra are critical in forensic science for paint analysis and trace evidence, in conservation for coating identification on artworks and historic structures, and in quality control for verifying raw-material identity in manufacturing. Reference spectra for man-made materials help analysts distinguish between similar-looking products — for example, differentiating alkyd from acrylic paints or identifying the binder in an industrial coating.

SpectralBench provides interactive spectra for man-made materials from the USGS Spectral Library, each downloadable in CSV or JCAMP-DX format. Browse the collection, compare against your unknowns, and quickly narrow down the identity of synthetic samples.