ZM coated products (Sink+Aluminium 3,5%+Magnesium 3%) verses HDG
What is ZM especially suitable for:
+++ Chloride-containing atmosphere - such as marine and swimming
pool.
++ Ammonia-containing atmosphere - such as farms and greenhouses
+++ Punched plates - good even healing on cut surfaces.
+ Good protection over broken surfaces.
++ Good appearance even after shipping and storage.
Øglænd System has since 2010 been working to replace HDG
material with ZM pre-coated thin plate products.
We have produced many projects with this type of material and
have the pleasure of presenting a series of standard products in
ZM.
We can refer to our own and the manufacturer's tests which
show excellent corrosion properties C4 and self-sealing of cut
surfaces.
We have listed some benefits:
Standard
ZM Product
Ladder LOE 75
Baner SPB-RF 40
Suspension CH50-2 CH100-1
Finish
HDG
Rough surface. Spikes tight holes.
Often becomes skewed in the dipping
process.
Grows quickly on the surface.
ZM
Glossy fine surface. No tight holes.
Nice and straight surface.
The surface stays "New" for a long time.
ZM
App. 5 % lighter than HDG.
Weight
ZM
Our variant with 25 my thickness on ZM layers is classified
as C4 (C5 -15 years) which is normally better than HDG
and with a corrosion rate that is 5 times slower than HDG
this gives a theoretical comparison 25My x5 = 125My… ..
Integrated in HDG standard EN10346: 2015
Corrosion
Corrosion
 Self healing effect observed
After 1 week
Environment
Price
After 15 months
After 25 months
Our variant has a thickness of 25 microns on the ZM layer
compared to 55 microns ++ on HDG, this puts less strain on
the environment.
And the coating takes place and under more controlled
conditions.
You also save all transport to and from the galvanizer
ZM
Up to 30% cheaper than HDG.
Suitable for special production with short delivery time.