Thin metal sculptures and the coatings which are typically used to protect them are highly stressed due to these variations.
Metallized coatings expand and contract at a rate more similar to the base metal compared to paint.
Therefore maximum corrosion control protection from the elements is achieved with a thermal spray coating. The metallized coating can be top coated with any color or type of compatible paint or remain it's native color. Different metals can be sprayed to achieve exotic colors such as copper, brass, bronze, silver, etc. These outdoor sculptures, metallized by Power Spray in 1985, had a clear automotive topcoats.