Initial Inspection

• Work is inspected for suitability.
• Contaminated surfaces through paint, grease, sand etc. and wrongly positioned or missing holes will be communicated to the customer.

Pickle

• Once the work has been wired onto jigs, they are transferred to our pickling tanks.
• These contain hydrochloric acid to remove surface rust and mill scale.

Rinse

• Jigs are immersed in rinse water to clean off the acid.

Flux

• The final step before the galvanising bath is flux.
• Work is placed in the flux tank to clean any remaining oxides to allow the zinc to wet the steel.

Hot Dip Galvanise

• Work is left to dry in the enclosure around the galvanising bath.
• Once it is dried sufficiently, it is immersed into the bath of molten zinc at 453°.
• This is when the reaction between the steel and the zinc takes place.
• The amount of time steel is left immersed in the bath is dependent on the fabrication and its thickness.

Final Inspection

• Once the steel-work has cooled sufficiently, it is cut down and packed.
• It is inspected at this point to ensure that it meets the British Standard of BS EN ISO:1461.
• Finally, it is weighed and ready for dispatch.