The formation of a metallic-appearing haze on a paint film.
1. Conservation · The result of deterioration exhibited by some gelatin silver photographic prints, characterized by the blacks turning to a shiny brown, typically as the result of poor processing. – 2. In printing, the use of metallic inks.
Bronzing has been defined 2 different ways in documents like Chroma System Low VOC Technical Manual Glossary, A Glossary of Archival and Records Terminology.