Page 128 - Jourdain - Catalogue T38 GB

GALVANISATION STORAGE
VERY IMPORTANT
THE HOT GALVANISATION PROCEDURE AND STORAGE RECOMMENDATIONS
All of our products are hot galvanised in compliance with the ISO 1461 standard.
Galvanisation provides a zinc-based surface covering that is aimed to protect steel from corrosion.
Thanks to their design, all of our products are totally protected both on the outside and the inside thanks to the hot dipping technique where they are immersed in a liquid zinc bath that is maintained at 450°C.
The 1461 standard “Hot dip galvanized coatings on fabricated iron and steel articles” defines the properties, the minimal thicknesses and the characteristics of the hot dip galvanisation coating, together with the trial methods for checking the thickness of the zinc per surface area unit, its aspect and adherence, as well as the criteria for conformity.
Depending on the design of the part, the chemical composition of the steel, its thickness, its surface aspect and other technical parameters, the thicknesses of the zinc that has been deposited are variable but always within the indicated values defined in the 1461 standard.
Our galvanisation factory partner has ISO 9001 certification.
The zinc, when exposed to the atmosphere, reacts naturally with the ambient elements: moisture, oxygen, carbonic gases... and forms a film. This results in a reduction of the surface’s metallic shininess where the aspect is concerned.
The film produced is insoluble, with a high level of adherence and provides added protection to the coating.
However the structure of this film is altered when it is in contact with stagnant water, and white stains with a low level of adherence and no protective characteristics are quickly formed. The level of protection provided by the zinc is not altered.
Galvanised equipment must only be stored on tannin free wood, and under no circumstances should it be left in contact with the ground. Air must be able to move freely around the different pieces, and stagnating water must be avoided.
Prolonged contact with slurry, farmyard manure, urine, silage, weedkillers, fertiliser, road protection products, pesticides, disinfectants or any other chemical product can lead to, in certain cases, rapid alteration of the zinc protective coating.
CAUTION!
In order to reduce zinc destruction and steel corrosion due to prolonged contact with silage, slurry and manure, we recommend that you buy the powder coated post and use the OCTAGONAL double sleeve. Another option is to crimp the heat-shrinkable protection sleeve (TR0101).
To protect the bottoms of barriers we recommend, before use,
the application of an industrial paint composed of a bonding primer on a galvanised product before application of an epoxy paint, ensuring that the paint is suitable for animal use. It is to be applied on the following equipment: post bases, bottom of barriers and cubicles, knee bars, brackets, etc.
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