Whether in steel or aluminum, Geometrica structures are highly
resistant to corrosion. Zinc is the most effective way to
protect steel and Geometrica's steel tubes are always
galvanized. For most structure exposures Geometrica's standard
galvanizing has an expected life to first maintenance of over 40
years. In aggressive environments, such as damp interiors or
exterior structures exposed to pollution, a clear acrylate
coating called Galvacoat may be applied over the galvanizing.
With Galvacoat, the steel tube has 3 layers of corrosion
protection: The first layer is the high-purity zinc. The second
layer is a conversion coating that passivates the zinc and
primes the surface. The third layer is a transparent organic
coating that seals the surface. The resulting finish is
beautifully shiny and smooth, and increases the galvanizing life
by four times (per salt spray testing). Aluminum structures are
available for extraordinarily corrosive environments, such as
swimming pool covers (subject to chlorine attack),