•The "silvering" of organic Coatings during their service-life is a natural occurrence caused by:
-Their exposure to environmental hazards that deteriorate their protective...(as well as: "decorative")...functions.

•And by (quite often):
-The manufacturers' addition of nanoAg biocide-structures to Coatings...to assist in warding-off bacteria and fungi when the superficial/topmost layer(s) of a Coating have been compromised/"cracked".


•Some of the exposure/compromising factors are:
-Climatic...UV-radiation<<<#1; heat; humidity
-Aggressive Media...acid rain; bird poo; brine (salt water)
-Hard Erosive Particles...sand; dust; hail; other mineral particles

•Some of the "decorative" deterioration will appear as:
-Loss-of-gloss
-Color fading


Bob