Galvalume™

Nuvo Iron™ is proud to use Galvalume™ coating on all of our products.

Description
Galvalume™ is a coated steel product that has proven its superior performance as a building material during extended field-testing in a diverse range of corrosive environments. Its unique combination of durability, edge protection, and resistance to corrosion is at least twice that of galvanized steel.

The Galvalume™ coating is an alloy composed of 55% aluminum and approximately 45% zinc by weight. It is applied on both sides of a high quality cold-rolled steel sheet using a precise continuous hot dip process. The result is a highly corrosion resistant coated steel that combines the barrier protection and extended durability of aluminum with the galvanic protection of zinc.

Galvalume™ steel sheet can be expected to provide at least twice the service life of traditional zinc-coatings of similar coating thickness under the same exposure conditions. This has been proven by actual exposure tests using flat coupon samples conducted over 40 years in the U.S.A. and 20 years in Canada. The tests covered a variety of environments ranging from rural to severe marine. The following chart, comparing the performance of Galvalume™ and galvanized of equal coating thickness, shows that Galvalume™ has at least twice the service life versus galvanized.

Coating losses of Galvalume Powder Coated Steel Vs. Galvanized Steel

Superior Cut Edge Protection:
The aluminum and zinc in the coating combine to prevent corrosion at exposed edges. The zinc component of the Galvalume™ coating provides galvanic cut-edge protection, while the aluminum component remains as a continuing barrier to corrosion.