Download a pdf of Perry Metal Protection's Corporate Profile.

Perry Metal Protection's team of experts can help you design and specify galvanizing for any scale of project in detail.

Click on the link to access the galvanizing industry standard specification Word document that can be downloaded and used for specifying hot dip galvanizing.

Further background is available from the Galvanizing Associations of New Zealand and Australia.  Click on the links under Associate Links to access further information on their respective websites. Alternatively, email your details and any questions to Perry Metal Protection's team of technical experts.

Steel coating damaged or require on-site steel protection?

On the rare occasion your galvanized steel item is damaged, Zincfix® is one of the most effective remedial steel protection solutions that can be applied on-site.

Zincfix® is an organic bound zinc rich coating containing >80% metal. It is applied to clean steel and hot dip galvanized surfaces to form an adherent anti-corrosive layer in excess of 100 microns thick. Zincfix® combines the convenience of squish pack technology with the chemistry of modern solvent free epoxies.

Download further information here or contact your Perry Metal Protection branch to purchase.

Fast, cost-effective and long-lasting

Hot dip galvanizing has the lowest first cost compared to many other commonly specified protective coatings for steel.

In situations where a long service life is critical, galvanizing can sometimes be the higher 'initial cost' option but, when a comparison is made over the whole service life of the contract, hot dip galvanizing is invariably the most cost effective solution.It requires very little maintenance over these long periods. The life expectancy of galvanized coatings on typical structures is far in excess of 50 years in most rural environments and as much as 20 to 25 years, even in severe conditions.

A full protective galvanized coating can be applied in minutes, whereas a fourcoat paint system can require a week to apply, allowing for each coat to dry prior to the application of the next. The galvanizing process is also not dependent on favourable weather conditions.

Galvanized coatings can be assessed readily by eye and very simple thickness test methods can be used. The galvanizing process is such that "if the coating appears sound and continuous, then it is sound and continuous".

Every part of a galvanized article is protected, even recesses, sharp corners and inaccessible areas. Coating adhesion and uniformity are features of the process. No coating applied to a structure or fabrication after completion can provide the same protection.

Galvanized coatings will also corrode preferentially to steel, providing cathodic or sacrificial protection to small areas of steel exposed through damage in erection or transit. Unlike organic coatings, small damaged areas need no touch-up.

How zinc protects

The reaction of the molten zinc with the steel during the hot dip galvanizing process results in a coating that is metallurgically bonded to the steel. The coating is not a simple zinc coating over the steel substrate but, rather a series of hard iron/zinc alloys that become more zinc rich towards the outer surface of the coating.

These alloys provide for an adherent coating that is harder than the underlying steel providing very good resistance against mechanical damage. The coating also thickens over corners providing excellent protection over areas that tend to be thinly coated and poorly protected using organic coatings.

Should an exposed area of steel occur, the zinc surface will preferentially corrode at a slow rate and protect the steel. This preferential protection is termed cathodic protection and, where damage is small, the protective corrosion properties of zinc will fill the exposed area arresting attack.

Finally, in addition to the barrier protection afforded, zinc protects against under- film creep (attack under the coating) should mechanical damage be so severe as to expose the underlying steel. Under-film creep is a common failure mechanism with organic coatings where rust spreads from any damaged area.

Zincfix®

On the rare occasion your galvanized steel item is damaged, Zincfix® is one of the most effective remedial steel protection solutions that can be applied on-site.

Zincfix® is an organic bound zinc rich coating containing >80% metal. It is applied to clean steel and hot dip galvanized surfaces to form an adherent anti-corrosive layer in excess of 100 microns thick. Zincfix® combines the convenience of squish pack technology with the chemistry of modern solvent free epoxies.

Download further information here or contact your Perry Metal Protection branch to purchase.

Prevention is better than cure

Hot dip galvanizing provides ideal corrosion protection for steel, whatever size of job you are undertaking.

Good metal protection at the start can bring economic benefits by reducing or eliminating the need for maintenance and by extending the practical life of structures and equipment.

No other coating matches galvanizing's unique combination of low initial cost and ease of inspection for coating quality, durability, predictable performance, low maintenance and resistance to abrasion and mechanical damage.

Successful galvanizing of mild and low alloy steels, iron and steel castings is regularly completed at Perry Metal Protection's five sites. Steel fabrications, which incorporate stainless steel parts and fittings, are also easily galvanized by our team of experts.

Note: Items over 9.5m are able to be galvanized by utilising the double-end dipping process.

Trust in Perry Metal Protection's staff to work alongside your fabrication team to ensure consistent high quality galvanized products.

Hot dip galvanizing is the complete corrosion protection system for all manner of metal items, including boat trailers, farm equipment and steel structures in houses and landscape design.

The rules are simple! To provide maximum corrosion protection, you must allow the flow of molten zinc into and out of all hollow sections covering every part of a fabrication.

The 'Design for hot dip galvanizing' booklet gives you guidelines on draining and venting, and drawings of fabrications that are enclosed, such as tanks and handrails.

It also gives an excellent synopsis of good galvanizing practice and some basic information you will find helpful.

Perry Metal Protection's expert team can help with any scale project from a 25,000 seat stadium to a decorative gate for your home.

Steel coating damaged or require on-site steel protection?

 

On the rare occasion your galvanized steel item is damaged, Zincfix® is one of the most effective remedial steel protection solutions that can be applied on-site.

Zincfix® is an organic bound zinc rich coating containing >80% metal. It is applied to clean steel and hot dip galvanized surfaces to form an adherent anti-corrosive layer in excess of 100 microns thick. Zincfix® combines the convenience of squish pack technology with the chemistry of modern solvent free epoxies.

Download further information here or contact your Perry Metal Protection branch to purchase.

Perry Metal Protection has been strengthening steel through hot dip galvanizing since the early 1970s.

A founding member of the Galvanizing Association of New Zealand, Perry Metal Protection operates sites in Auckland, Hamilton, Tauranga, Wellington and Christchurch, offering highly efficient galvanizing facilities.

All five plants have the capacity to galvanize a wide range of steel structures including fabricated steel, pipes, gates, trailers, stillages and beams.

For commercial customers, Perry Metal Protection have a strong team of experts to advise on design features and liaise directly with the design engineer, specifier, materials engineer and fabricator to ensure the best quality and to maximise the benefits of the galvanizing process.

Perry Metal Protection also manufacture a range of steel grating products, under the Perry Grating brand.

Download the profile brochure.