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Creative - Powder Coating Services - Innerleithen - Scottish Borders | ColourWorks

Creative – Powder Coating Services – Innerleithen – Scottish Borders

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Creative - Powder Coating

Our Powder Coating Services

  • Ability to Powder Coat various Metal Components.
  • Tough and flexible finish for metal.
  • Resistant to cracking and flaking.
  • Available in a wide range of colours.
  • Bike frames, Alloy Wheels, Vehicle Parts, etc.
  • Based in the Scottish Borders.
Powder Coating Process

The powders used creates a hard finish that is usually tougher than conventional paint. Powder coating can only normally be applied to metals that conduct electricity or items that can be heated to > 200 C. Examples are metal signs, Car & Motorcycle Components, Bicycle Frames, Steel & Alloy Wheels, Garden Furniture, Tool Boxes & Metal Signs

Powder coatings exhibit excellent weathering characteristics on exterior surfaces offering a tough and flexible finishresistant to cracking and flaking. (Thin powder coatings can be bent but this is not recommended for exterior applications)

Step 1 – Surface Preparation
The basis of any good coating is preparation. Removal of dross, oil, dirt, lubrication greases, metal oxides, welding scales etc. is essential prior to the powder coating process. This can be achieved by a variety of chemical and mechanical methods.

An excellent method of preparing a previously painted or corroded surface prior to coating is Shot Blasting. Provides surface texturing and preparation, etching, finishing, and degreasing.

Any problems such as corrosion weakness, holes or broken weld joints are revealed at this stage.

Step 2 – Powder Application
Any areas that does not require to be powder coated, such as threads or bearing surfaces are masked off with heat resistant tape, sacrificial nuts & bolts or silicon plugs prior to powder coating.

The gun imparts a positive electric charge on the powder, which is then sprayed towards the grounded metal object using compressed air.

Because the powder particles are electrostatically charged, the powder wraps around to the back of the part as it passes by, the powder will remain attached to the part as long as some of the electrostatic charge remains on the powder.

It is vitally important that the compressed air supply be scrupulously clean as powders are highly susceptible to pick-up of contamination such as oils or moisture from unclean air.

Step 3 – Oven Curing
Once coated in powder the object is then placed back in the curing oven and heated, and the powder melts into a uniform film, and is then cooled to form a hard coating.
Under the influence of heat a thermosetting powder goes through four stages to full cure. The coating is continuous and will vary from high gloss to flat matt depending on the design of the powder by the supplier. The cure process, called crosslinking, requires a certain temperature for a certain length of time in order to reach full cure and establish the full film properties for which the material was designed.

Normally the powders cure at 200°C (390°F) for 10 minutes. The curing schedule will vary according to the manufacturer’s specifications.

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Danny MacAskill – Drop & Roll

We were asked by Danny MacAskill’s to change the colour of the new prototype of the Inspired Skye V3 Team Bike from Skye Blue to Textured Matt Black.

The bike went on to appear in the Danny MacAskill – Drop and Roll video.

Our Powder Coating Facilities

Wagner Sprint – Powder Coating Machine
We use a Wagner manually operated unit, consists of light weight powder gun that is fed powder directly from its container. A modern design, intuitive to use and consistently gives excellent results. Capable of quick and easy colour changes.
For More Information visit Wagner

Capability – Coating Aluminium, Steel, Iron and Glass
Coatings are applied as a free-flowing, dry powder. The coating is applied electrostatically with a Powder Coating Gun in a Ventilated Spray Booth. The powder Coating is then cured by heating it in an Electric Oven at approx. 200C for around 10 minutes.

Therefore the size of component that can be Powder Coated is normally limited by the size of oven used for curing.

Curing Oven – Despatch Electric Convection Oven
We use a large Despatch electric oven into which coated items are loaded on a trolley. A high-volume fan circulates air through perforated, aluminized steel walls to create a constant horizontal air flow across all sections of the oven, the horizontal recirculating air flow to ensure uniform temperatures throughout.
For More Information visit Despatch
OVEN CAPACITY – WxDxH: 1.30 x 1.60 x 1.50m

Colours Available

We only keep a number of the most popular colours in stock. However, there are hundreds of colours and finishes available in gloss, semi gloss, matt and a variety of textures available.

Unfortunately, unlike wet paints, powders cannot be mixed to specific colour for small quantities and normally only one colour can be applied at a time.

Powders are available in most RAL colours, however, if we do not have a specific colour in stock there is normally an additional charge for a one off purchase.

Alternately, small quantities of a variety of colours can be purchased from “Electrostatic Magic” and are usually sufficient to do something like a Bicycle Frame.

High Chrome colours are available, however, experience has shown that these powders are still no substitute for chrome. We have found that they will eventually dull in colour to a silver grey.

Contact the Workshop

Unit A – Station Yard

Traquair Road
EH44 6NJ
Scottish Borders

01896 833099 – 07799 472214 – 07766 805136

See more examples on our dedicated Facebook page.

Creative - Powder Coating