This
is the most common corrosive protection for metal surfaces.
The electro-galvanising process, and in particular the alkaline
process, allow for a thin layer of zinc to be applied, resulting
in excellent resistance
to corrosion. The main advantages of galvanising, in contrast
to more noble metals, are that it offers maximum protection
to corrosion and excellent affordability.
Zincoplating uses ALKALINE ZINC WITHOUT CYANIDE PLATING. This
is an innovative system, as it does not contain toxic substances.
The advantages of this process are:
* Excellent penetrating power and uniform thickness
* Better guarantee of chromate adherence
* Maximum resistance to corrosion of the zinc-passivator
Our productive processes use extra
pure zinc with test analyses proving 99.99% zinc purity.
The finished product can vary in colour: white, yellow,
black, olive green.
Passivation
free from Hexavalent Chromium
New European standards regulate the use of hexavalent chromium,
which as of 01/07/2007 set a limit of 2 gr. per automobile.
Nevertheless, for some time, the motor vehicle industry
has already been imposing severe limitations on the use
of hexavalent chromium based compounds.
In contrast to the aforementioned statement, in recent years
products that have been passivated without Cr VI have proven
to be more effective and more environmentally safe.
- White trivalent galvanising
- Iridescent trivalent galvanising (point IV)
- Black trivalent galvanising