Zinga Film Galvanising Coating System is a single pack coating that contains 96% zinc to provide cathodic protection of ferrous metals. Zinga can be used as an alternative to hot-dip metallisation, as a primer in a duplex system (active and passive) or as a recharging system for hot-dip galvanisation, metallisation or zinganised surfaces, Zinga can be applied on site, avoiding the need for dismantling ferrous metal structures, forming a grey matt, non toxic finish. Zinga conforms to ISO standard 3549 in regard to its zinc purity of 99.995% and to ATM standard A780 in regard to its use as a repair coating for hot-dip galvanisation. Zinga can be overcoated with a compatible paint.
Use Zinga for the galvanising paint protection of ferrous metal structures such as bridges, a primer for boat keels, pylons, masts, street furniture, etc. Zinga is a longer lasting protection system compared to zinc rich primer or zinc phosphate primers. With correct preparation and application this cold galvanizing paint has an expected lifespan to first maintenance of 20 years.
|System With Zinga||Alternative Paint System||Alternative Zinc and Paint System|
|C4 High = C5 I/M Medium||Zinga 2 x 60 micron DFT||Paint min. 300 micron DFT||Hot Dip Galvanizisation
80 micron + Paint 160 micron DFT
|C5 I/M High||Zinga 2 x 90 micron DFT
Zinga in Duplex
|Paint min. 320 micron DFT||Hot Dip Galvanizisation
80 micron + Paint 320 micron DFT
|Im2 and Im3||Zinga 1 x 60-90 micron DFT
Zinga in Duplex
|Paint min. 500 micron DFT||Zink (R) Paint 60 micron DFT + Paint 390 micron DFT|
As the paint top-coat naturally begins to break down and become porous over time, the Zinga fills the pores from below with zinc oxides enabling the top coat to last longer. Additionally, Zinga does not even start to sacrifice itself until the topcoat has become damaged to the point where it is exposing the bare zinc to the elements. It is because of this that we can state that the service-life of a duplex system can be 50% more than the sum of the individual lives of Zinga and the paint topcoat when added together.
Zinga can be applied by brush, roller, conventional spray gun or airless spray after thorough preparation of the substrate. The substrate should first be degreased, preferably by steam cleaning, then gritblasted or slurry-blasted to cleanliness degree SA 2.5 according to ISO standard 8501-1:2077 or to cleanliness degree described in standards SSPC-SP10 and NACE No.2. The surface must be free from rust, grease, oil, paint, salt, dirt, mill scale and other contaminants. Apply Zinga as soon as possible after preparation to a dry surface. ZINGA must be thoroughly mechanically stirred to achieve a homogeneous liquid before application. After a maximum of 20 minutes, re-mixing is necessary.
Suitable for application down to -15°C.
ZINGA can be overcoated with a wide range of compatible paints. It is however, just like all Zinc rich systems sensitive to the influence of solvents. In order to avoid blistering, pinholes and other defects (which will negatively affect the performance of the ZINGA layer), it is advised to apply any topcoat with a mist/full coat technique. First, a thin continuous layer is applied which gives air bubbles easy passage through the film. The first mist coat also provides a barrier for aggressive solvents in the topcoat.
For overcoating this product, use Rustoleum Pegalink as a sealer coat prior to applying your chosen topcoat. Please note, that the application of a alkyd directly onto Zinga is not possible as the alkyd will not fully dry or cure.
What is the differance betweek Zinga and Paint?
Zinga is a high performance galvanizing coating for metal. Zinga containing zinc that works in conjunction with the metal substrates unlike paints that only offer a passive barrier. Regardless of the film thickness applied paint will only ever be a barrier unlike Zinga galvanizing coating that is an active coating. Once they are breached corrosion sets in immediately. Despite this significant difference Zinga is still thought of as a paint as it’s a liquid and is packaged in a tin. But there are other more subtle differences. Zinga does not “skin over” in the tin. Also Zinga is a single pack product so offers an unlimited pot-life and it doesn’t go “tacky” like a paint.
Cathodic protection arises from the anode, sacrificing itself in favour of the base metal, which allows the resulting flow of electrons to prevent the chemical reaction of the corrosion. This means that the protection of your metal is guaranteed, even when the zinc layer is damaged slightly. When you use Zinga, the sacrificial rate is reduced dramatically after the zinc layer has oxidised, and the natural porosity have been filled with zinc salts. Additionally, the zinc particles within the Zinga layer are protected by the 'organic binder' without negatively affecting the electrical conductivity of the metal. This allows Zinga to create nearly the same galvanic potential between the zinc and the steel as hot dip galvanising, but with a lower rate of zinc loss due to the fact that the binder acts as a sort of 'corrosion inhibitor' to the zinc.
Promain are currently looking for contractors who would like to become approved applicators of the Zinga range of products who can also provide suitable preparation facilities via wet abrasive blasting through machines. If you and your company are interested, please contact our technical team on 01462 421333 or email us via the contact us page.
|VOC Content:||474.0g per Litre|
|Suitable Substrates:||For suitably prepared metals|
|Application Method:||Brush, Roller, Conventional Spray or Airless Spray|
|Theoretical Coverage:||9.67 m2 per litre at 60 microns|
|Wet Film Thickness (WFT):||-|
|Dry Film Thickness (DFT):||60 - 120 microns|
|Touch Dry:||15 minutes at 20°C for 40 microns|
|Overcoatable:||Application by brush: 2 hours after touch dry.
Application by spray gun: 1 hour after touch dry.
|Fully Cured:||48 hours at 20°C for 40 microns|
|Cleaner / Thinner:||Zinga Zingasolv|
|Packaging:||Available in 1, 2, 5 and 10 Kg (2 x 5 Kg)|
The manufacturers data sheets are available for download from this website. It is your responsibility to read and understand all aspects of the data sheets before you place an order and prior to application. Please pay special attention to the preparation, mixing and application temperatures of the product, cleaning of substrate and environmental factors such as temperature, rain etc. Quoted coverage rates are based on the manufacturers theoretical rates and may vary depending upon substrates absorption, texture and application. We always recommend a test is carried out to ensure suitability.
Customer further agrees that Promain have no liability for any errors or omissions contained within the Product Data Sheets and are not liable for failure due to misapplication or inadequate substrate cleaning and preparation. For more information please refer to our Terms & Conditions.