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Coatings

Every Forjj product is supplied with a hot-dip galvanised pre-treatment as standard. You can paint your galvanised metalwork using an appropriate paint or we can save you the hard work and factory finish (a process called polyester powder coating) in a choice of colours. Read on for more information.

 

Galvanising

Not all metalwork is created equal!

All Forjj mild steel products intended for exterior use are hot dip galvanised in accordance with the British Standard BS EN ISO 14713-1:2009. This simple and inexpensive process ensures years of corrosion resistance and should be top of your list and non-negotiable when you are shopping for long-lasting exterior steelwork. In particular, the 'Hot Dip' process provides a superior protection to that of electro galvanising (also known as electro-plating, zinc plating and electrogalvanization) is better suited to short lifespan or sheltered outdoor products, while hot dipping creates a more robust zinc layer to protect from even the harshest and exposed climates.

 

What is Hot Dip Galvanising?

This is a rust prevention treatment.

Galvanization (more commonly known as galvanising) is the practice of dipping steel in hot, molten zinc to form a metallurgical bond between the zinc and steel. This process helps steel-based structures last longer (generally considered to be around 50-100 years) at a corrosion rate 1/30th that of bare steel. The process is low cost in terms of first-time, maintenance and lifetime costs.


Benefits of Galvanising

  • Low cost protection.
  • Zinc isolates steel from the environment.
  • Also provides ‘cathodic protection’ meaning that if a section is scratched, the surrounding zinc will continue to resist corrosion.
  • Uniform, complete coverage (corners have the same protection as flat surfaces and hollow tubes are protected inside and out).

 

Polyester Powder Coating

All Forjj polyester finish products are powder coated in accordance with the British Standard BS 6497.

 

What is Polyester Powder Coating?

This is a decorative finishing treatment which offers a high quality, durable alternative to traditional wet paint.

Polyester powder coating (PPC) is a dry process that has become extremely popular since its introduction in the 1960s. The most common application method uses a spray gun which applies an electrostatic charge to plastic powder particles which are sprayed towards (and attracted to) a grounded metal part. The powder is then melted and cured in an oven.

Whilst it is an improvement on wet painting, PPC on its own does not provide long-term protection to steel. For this reason Forjj always hot dip galvanises prior to powder coating.


Advantages of Powder Coating vs Wet Painting

  • More durable and more resistant to many corrosive chemicals and weather.
  • More resistant to chipping and scratching.
  • A more even, smooth finish without runs or drip.
  • Colour tends to stay bright and fresh longer.
  • Low waste - powder overspray is retrieved and reused at source.

What colours are available?

Our juliet balcony standard powder colours are black, white and anthracite grey.

Our powder coated gates are black as standard.

Please get in touch if you have another colour in mind - we can offer the full RAL colour range.

Sample of Anthracite Grey


 

How to look after your product coatings

Although galvanising is not generally considered a decorative ‘final’ finish they can be left without painting and require very little ongoing care. The bright and shiny appearance will soon dull to a grey or white matte appearance.

Powder coated items should be inspected occasionally for damage and can generally easily be repaired with a colour-matched spray or brushed paint. Clean every 6-12 months with a soft cloth and mild detergent (we find dish soap works pretty well!)

If your products have glass then this can be cleaned and cared for in exactly the same way as your building’s windows.

Check our FAQs for advice on caring for stainless steel.

 


For more information please contact us and we will be happy to help.