Hot Dip Galvanizing

Proven, Honest, Sustainable

Galvanizers Association is the source of free information and advice about hot dip galvanizing and the galvanizing industry. Feel free to contact us on +44 (0) 121 355 8838 if you need any assistance on design, specification or advice on performance.

the zinc tank

Why do I get variation in the colour of galvanized steel?

Specifiers and end users often anticipate that batch hot dip galvanized steel will have a uniform bright colour and appearance. In practice (…) some variation in coating appearance might occur.

Read more



Subscribe to the get the latest tech update via email
We have recently launched ‘the zinc tank’, where we’ll inform you about the latest technical insights into the process, performance and the many uses of galvanized steel.

Featured Case Study
Heavy Horse

Heavy Horse

Andy Scott

Erected in 1997, the sculpture has become one of the best known artworks in the Glasgow area. It is sited on Glasgow Business Park beside the M8 motorway, and stands four metres tall at the head.

Tell me more

View More Case Studies

Up to 170 years of protection

Find out how long galvanizing will last in your area and view a list of approved galvanizers near you...

Hot dip galvanizing corrosion map

This map provides data for the atmospheric corrosion rate of hot dip galvanizing. Search for a location and hover over the 10 km grid to obtain the corrosion rate. The map legend can be used to find the average life of an 85 µm coating within the area.

Corrosion rate key
Average Corrosion Rate(µm/year) 0.5 1 1.5 2 2.5
Average Life of 85µm galvanized coating(years) 170 85 57 43 34

Average background corrosion rates for zinc. Each grid square is 10km².