How long will Si-COAT last?
Naturally, the service life of a coating is dependent upon service conditions. Under severe environments (i.e. heavy industrial with heavy fumes and fallout, rate of steel corrosion = 76 – 152 microns [3 – 6 mils] per year), Si-COAT can be expected to last between 15 to 20 years, regardless of surface preparation by SSPC-SP2/3 or SSPC-SP5 standards. Service life estimates by NACE (see NACE Paper #335) for the best available inorganic zinc/epoxy/polyurethane three-coat systems in an identical environment is 3 to 5 years on an SSPC-SP2/3 prepared surface and 4 to 8 years on an SSPC-SP5 prepared surface.
