US Army Corps of Engineers
EM 1110-2-3401
Section 4.3 Service Life
"There are many documented examples of thermal spray coatings of zinc and aluminum with very long service lives...Thermal spray coatings applied at a thicknesss
of .1 inch have performed more than 40 years in atmospheric conditions...Zinc thermal spray coatings in potable water tanks have lasted more than 30 years...The
FHWA (1997) report estimates a service life of 30 and 60 years for 85/15 zinc aluminum alloy coating (.006 inch) in severe marine and mildly corrosive
atmospheres respectively."
