How can it be used?
ZINGA as a Stand Alone Galvanising System
ZINGA provides comparable protection to conventional galvanising without the need for topcoats.
Additionally ZINGA is commonly specified on delicate structures (wrought iron gates, sculptures) or when architectural demands require a higher standard of surface finish (no need to drill to de-gas, fettle).
As a primer in duplex system
Not everybody likes the colour grey and with the additional protection of a compatible topcoat, the coating durability offered significantly increases. ZINGA does not even have to start working actively until the topcoat has been compromised and with no underlying corrosion creep or rust bubbling, the topcoat itself inevitably lasts longer.
In a duplex system (Active + Passive), ZINGA should be applied in 1 layer of min. 60 to 80 µm DFT.
For more information and application instructions, see ‘Overcoating ZINGA’.
ZINGA as a shop primer, same process as painting but many times better anti-corrosion result
At 30-40 µm DFT, ZINGA can be used as a shop primer. The big benefit is found in the fact that the steel structures do not require reblasting before coating if ZINGA is applied as a shop primer. The steel structure can be overcoated with ZINGA to obtain a cathodic protection or with any other paint without the need for reblasting!
Zinganised steel structures can be welded and bent during assembly.
Electricity Pylons: ZINGA Used To Repair Worn & Damaged Hot-Dip Galvanized or Metal Sprayed Pylons in Thailand
This method is probably the most common use of ZINGA as it requires the simplest surface preparation. ZINGA’s mechanism of protection is so similar to conventional galvanizing that they work in complete unison, as they are merely different forms of zinc. Rather than replacing galvanized assets, structures can simply have their protection “re-charged” by applying ZINGA to the rough surface of the old galvanizing after appropriate decontamination of the surface and removal of the salts.
ZINGA Used On Rebars Of Massive Bridge Construction in China
Widely used in countries where the available concrete can be of less quality, Zinganising the steel re-bars before assembly and immersion in concrete ensures vastly increased protection from corrosion without reducing the pull-out strength of the bars. Recent tests in three independent laboratories showed that ZINGA had at least twice the corrosion protection of either galvanised or epoxy coated rebars.