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Anticorrosion coating durability in aggressive environments on average, depending on its thickness.
An objective study conducted by an independent, reputable laboratory con-
firmed high quality of screws manufactured by ETANCO.
The tested ETANCO fasteners, even after 72 hours in a salt chamber retain
corrosion protection properties and do not expose the installed roofing to
rusting at the point of attachment. In case of other screws available on the
Polish market, additional sealing of the roof may be required even after a
few years. The following is a simulation of corrosion resistance depending
on the film thickness of the protecting coating.
Modern research methods and the ISO 9001:2008 quality system ensure
continuous quality control of manufactured products.
CORROSION AND PROTECTIVE COATING
Corrosion resistance chart
Chart of salt chamber test according to PN-EN 9227 standard
screw 1
screw 3
screw 2
hours [h]
anticorrosion protection
galvanisation 8µm
galvanisation 12µm
galvanisation 20µm
Stainless steel A2
Stainless steel A4
HDG 50µm
Corrosion protection offered by ETANCO