Frequently Asked Questions

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Frequently Asked Questions

It is an organic, single-component zinc coating containing a minimum of 96% pure zinc in the dry film.

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The high concentration of active zinc in Zinga creates a potential difference between the coating and the steel substrate of about -840mV. Once the steelwork becomes wet, the zinc ions go into dissolution and the current begins to flow from the zinc to the steel, depleting the zinc layer and protecting the steel beneath by preventing any corrosion reaction taking place.

This is known as galvanic protection.

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No, it is a zinc coating which is applied as a form of liquid galvanizing.

Zinga does not behave like a paint e.g. it does not ‘skin over’ in the tin, it does not clog-up spray-gun nozzles, it does not form loose ‘runs’ easily, it does not go ‘blotchy’ in damp conditions, it does not go onto surfaces and remain wet like paint does and it does not go on ‘tacky’ like paint.

Zinga also has an unlimited pot life and an unlimited shelf life. Once the lid is put back on the tin it can be stored for use at any point in the future i.e. no waste!

The aromatic solvent blend found in Zinga does not contain any "nasties" benzene, xylene, toluene, MEK, methyl-chloride etc. which make up many industrial solvent blends. Zinga is rated as totally non-toxic in its dry state.

Hot-dip galvanizing and zinc thermal spray (TSZ), although, in a marine environment Zinga consistently out-lasts HDG.

Zinga has a 3-5mm ‘throw’, which means that any uncoated metal up to 5mm away from a Zinganized surface will be protected. It will form a layer of surface rust, but there will be no pitting beneath the rust. On small areas like scratches and chips, the surface will often go a light brown-grey colour but underneath no corrosion will take place.

It is because every square millimeter of steel that has been coated has a galvanic charge flowing continually between the zinc and the steel, so there is no possibility of any corrosion reaction to begin underneath a Zinga layer. The high potential difference between the two metals ensures that there is always a strong flow of electrons between them.

Yes. The purity of the zinc in Zinga is 99.995%, which is medicinal quality. The binder is completely non-toxic, and completely safe when dried. Please note that Zinga has a slightly porous surface and hence is open to potential bio-accumulation, where bacterial spores could inhabit these small voids and multiply. This is the reason that the zinc layer should be coated with a thin layer of an FDA-approved paint.

Yes. Zinga is certified to BS476 parts 6&7. This means that a dried Zinga coating will neither propagate a fire nor cause one to spread, hence its use in the London Underground for many years, its increasing use on offshore oil platforms and its approval by the British Navy.

After comparative usage on marine projects, Zinga out-lasts hot-dip galvanizing by approximately 10% in marine conditions. In normal atmospheric conditions the two coatings are very similar in lifespan.

Zinga has been used to galvanize chains and bolts for marine use, and when subjected to abrasion it will "polish up" and take on a shine.

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