Powder Coating

Powder coating is the application of a dry, powdered coating on the surface of your parts. The parts are given an electrostatic charge and the powder is given the opposite electrostatic charge. This ensures complete coverage when the powder is sprayed – even on complex shapes.

The powder coating is then fused to the surface (cured) in a temperature-controlled oven and the powder ‘melts’ over the part to form a hard, protective coating. Powder coatings come in a wide variety of colours and textures and offer a highly durable scratch and chemical resistant finish. It also provides excellent corrosion protection.

Powder CoatingPowder types

There are five major types of powder

  • Epoxy
  • Expoxy Polyester
  • Polyester
  • Nylon (warm to touch)
  • Antibacterial

Each of these powders has different performance characteristics.

Colours and Materials

We stock the full range of Pantone, RAL, BS381C and BS 4800 and colours as shown on our Ral Colour Chart and  Colour Charts page and offer a choice of finishes including matt, gloss and satin. Non-standard colours may be available on request.

Summary of Powder Coating Qualities

  • No risk of running or blistering
  • High repeatability
  • Powder coatings withstand knocks and abrasion far better than wet paint coatings
  • Good formability (e.g. can be formed after coating)
  • Suitable for outdoor use – good resistance to UV and corrosion
  • A beautiful and uniform quality finish without paint runs
  • Cost efficient – even on small batches or single items
  • The electrostatic powder process ensures complete coverage – even on complex shapes
  • Choice of finishes – clear, plain colour, metallic or textured
  • Protection against external ultraviolet fading
  • Corrosion resistance
  • Exceptional gloss and colour retention
  • Robust mechanical and chemical performance – good at resisting abrasion, acids, solvents etc.
  • Good electrical insulation capabilities
  • Strong resistance to chips, scratches, chemicals and grease
  • Virtually any colour can be matched
  • Tends not to run, drip or sag which may result in fewer rejects
  • High resistance to damage by weather
  • Contains no Volatile Organic Compounds (VOC’s)
Before Powder Coating

Before Powder Coating

Powder Coating After

After Powder Coating







Why use Diamond Metal Finishing?

Because you need a metal finisher who is reliable and can give you the customer the very best quality available by processing your parts  to an unrivalled consistent, uniform, aesthetically pleasing quality, finished right first time to meet the relevant performance criteria.

Please contact us for further technical advice and all of your metal finishing requirements on 01782 822442 or by using our  contact form.

Spray painters and production operatives are required for immediate start within our metal finishing facility.
Experience preferred but not essential, shift work may be required.
Please apply to : office@diamondmetalfinishing.co.uk