Finishing and polishing

Hot Dip Galvanizing

The advantages of Posidonia hot-dip galvanizing

Hot-dip galvanizing protects iron by acting as a barrier between iron and the atmosphere.

Hot-dip galvanizing protects the metal from corrosion even inside hollow or hard-to-reach structures. The advantage is that it increases the life of iron without requiring much maintenance.

Hot-dip galvanizing gives a usually dull gray color. Our galvanizing is in accordance with EN 1461 standards with a minimum zinc layer of 75 microns.

The treatments are followed by the company and the finishes are the signature of our anchors, chains, and all the towing and mooring equipment that we design and produce in Novi Ligure.

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What is hot-dip galvanizing?

Hot-dip galvanizing (HDG) is the process of coating iron by immersing it in a bath of molten zinc.

The fundamental stages of the hot-dip galvanizing process are three:

surface preparation
galvanizing treatment
inspection through sampling, visual inspection, and control of the coating thickness using a magnetic flow meter

Other treatments

Zinc coating with sealant

Electrolytic iridescent zinc coating with sealant is a further improvement of the surface treatment. Our treatments are carried out in Italy and not in China. This treatment is usually performed on disassembled kenter chains. Standards achieved: UNI ISO 4520, ASTM B633, DIN 50979.

"Thermal zinc spray"

Metallization is a surface treatment carried out in Italy. The goal of this standard is to clean the surface with a jet of white metal that removes all previous coatings: rolling scale, rust, oxides, corrosion products, and other elements. When the surface is cleaned, it becomes like a "hard protective layer" whose function is similar to an anode.