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Technical Data

Please find information below on the technical data for both galvanizing and powder coating.

If you need to download or print this information, you can find a PDF in the Download section

Galvanizing Technical Data / Info

What is the size of your galvanizing bath?

Maximum Material Dimension
7.2m long 12.5m long Double Dip Length
1.7m wide 1.5m wide Single Dip Length
2.75m deep 2.5 high Single Dip Length


*Max weight lift - 5 tonne.
Double dip materials are immersed first one way then the other to coat the full length.

Surface Contamination

Paint, oil and grease have to be removed before the galvanizing process to provide a clean steel surface to ensure good hot dip galvanizing.

Distortion

Distortion cannot be ruled out during the galvanizing of any component due to expansion and contraction.

Mesh

Weld every other wire in the mesh to reduce possible distortion.

Venting

Every sealed section of a fabricated structure must be vented for reasons of safety and to allow access and drainage of molten zinc. Holes should be as close as possible to the sealed end and on opposite sides of the section. The larger the hole size the better the drainage, the better the finish.

Structural Steel

External stiffeners, welded gussets, webs on columns, beams and gussets in channel sections should have their corners cropped. This will aid access and drainage of molten zinc and a cleaner coating will be obtained.

Re-Galvanizing

Any material which is fabricated with black steel and galvanized steel that requires to be galvanized must be stripped back to base material.

This is to ensure that when the material is processed through the galvanizing bath the metallurgical reaction between base material and zinc occurs thus ensuring your material is processed to BS ISO 1461.

Powder Coating Technical Data / Info

Dimensions / Booth Size

Booth SizeMaximum Working Envelope
6.8 m long 0.850 wide 2.8 m high

Surface Contamination

Paint, oil and grease have to be removed before the powder coating process to provide a clean surface to ensure a good quality finish.

Venting

Every sealed section of a fabricated structure must be vented for reasons of safety and to allow access and drainage of chemicals at the pre-treatment stage. Holes should be as close as possible to the sealed end and on opposite sides of the section. The larger the hole size the better the drainage.

Colour

NK Coatings is an approved applicator offering a guarantee to meet the decorative and performance needs of the construction industry for both aluminium and galvanized steel.

NK Coatings offers an extensive colour range of Ral, BS, metallic and speciality finished in gloss, semi-gloss and matt.

Sales can advise how to specify NK Coatings - Approved finish.

You can view colour charts via the links below:

NK Coatings is the the market-leader in metal finishing services in Ireland, based in Mallusk.