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Powder Coating Process

Process One - Pre-treatment

Pre-treatment is a five stage process comprising of the following:

Stage 1: Is a highly Alkaline cleaner for steel alloys and zinc-coated steels
Stage 2: Cold rinsing from the main water supply.
Stage 3: Rinsing with Demineralised water
Stage 4: Oxsilan 9810 is a silane-based multi-purpose liquid pre-paint treatment
Stage 5: Single ring rinsing with Demineralised water

The integrity of the pre-treatment system is maintained by rigorous use of SPC controls and reinforced by regular testing of production sample panels by an independent test laboratory.

Oxsilan 9810 is an innovative new pre-treatment system launched in the UK in 2006, relying on chemical bonding, as opposed to traditional metal coating. It delivers corrosion protection to products, that out-performs an equivalent zinc phosphate system, without the environmental and associated cost disadvantages.

Process Two – Drying

The drying oven, set at approximately 180°C, drys the pretreated components ready for application of the powder paint.

Process Three – Powder Application

A combination of automatic and manual spray operations ensures that a controlled and consistent powder film build is achieved.

As work passes through the spray booth, controlled amounts of powder are applied by automatic Electrostatic spray guns mounted on automatic reciprocators. Difficult areas not reached by this process are coated by an independent manual spray operation.

Both manual and automatic guns are computer controlled to ensure consistent powder application.

The spray booth benefits from an automatic part recognition system, which continually adjusts the stroke and operation of the guns to optimise the process for individual items.

Atlas has a quick colour change spray booth to assist in minimal downtime during colour changes. Overspray powder is reclaimed through a rigorous filtration system, allowing excellent material utilisation whilst minimising environmental impact.

Process Four – Stoving

After powder coating components pass through a gas-fired tunnel oven, the deposited powder film flows then cures as the metal temperature increases to that recommended for the powder applied. During the course of this process, the particles of powder bond together to produce a continuous smooth finish.

Where primer coats are required

If a primer coat is initially applied, during the subsequent top coat application, all elements of the pre-treatment will be switched off, allowing the top coat to be applied directly to the primed surface.

If you require any further information regarding Atlas Coating's plant, or data sheets relating to materials used, please contact our Technical Sales Manager, Cliff Plant on either 01889 271 002 or 07980 713 465 or email This email address is being protected from spambots. You need JavaScript enabled to view it.

To discuss your requirements please contact us:
Call: 01889 271 202 or Email: This email address is being protected from spambots. You need JavaScript enabled to view it.

 Atlas Coating Process - Atlas Powder Coating

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