Colour measurements have been performed on outdoor bronze patinas and protective coating systems with a portable spectrophotometer. Colour difference reduction upon patinas cleaning on a monument is monitored. Colour differences upon natural weathering measured on coatings applied to bronze coupons show they are mainly due to the decrease in lightness L*. Application of colour measurement in support to outdoor bronze monument conservation is discussed.
Colour measurements on patinas and coating system for outdoor bronze monuments
FRANCESCHI, ENRICO;LUCIANO, GIORGIO
2006-01-01
Abstract
Colour measurements have been performed on outdoor bronze patinas and protective coating systems with a portable spectrophotometer. Colour difference reduction upon patinas cleaning on a monument is monitored. Colour differences upon natural weathering measured on coatings applied to bronze coupons show they are mainly due to the decrease in lightness L*. Application of colour measurement in support to outdoor bronze monument conservation is discussed.
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