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The three gates of 3,000m2 each were blasted, zinc
powder sprayed to 80 µm, followed by one coating
of zinc chromate and two coatings of aluminium paint
- a total coating thickness of 220 µm.
Working from 6am to 7pm, six days a week, it took ten
months to apply eleven tonnes of zinc powder.
Today, with the latest high deposition rate Arc Spray,
it would be possible to complete the job in only two
and a half months.
27 years after the coating was first applied, no signs
of corrosion were visible, and a water blast was all
that was required on the gates, prior to one coat of
aluminium paint being applied.
An amazing testimony to the effectiveness of metal
spray (not to mention the tenacity of Polish French
immigrants !).
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