For powder coating of aluminium for architectural applications, TD finishing have supplied many pre-treatment and powder coating facilities. The aim of the Qualicoat Specification is to establish the minimum requirements which plant installations, organic coating materials, chemical conversion materials, processes and finished products shall meet.

The pre-treatment plant and powder coating facility parameters are set-out in the Qualicoat standards (15th Edition).  This governs drying and curing oven temperatures, water quality, the pre-treatment testing schedule, as well as production process and equipment inspections.

A lot of TD Finishing’s clients are looking to bring production in house, allowing them to improve quality, reduce cost and unnecessary transport for rejected components.  Bringing the control in house can be particularly crucial for companies seeking to gain Qualicoat approval.

Two recent installation by TD Finishing included a dip pre-treatment system as well as a power & free powder coating and curing system.  The products would be placed into baskets and manually transported through the 7-stage dip pre-treatment using an electrically driven hoist system. After pre-treatment the products would be dried in the direct gas fired well oven.

Following drying, the products would be hung on to a flight bar at the load area of the power and & free conveyor.  the flight bar is then manually manoeuvred in to position at the front of the Powder booth. The flight bar is then driven through an auto powder booth and then through the single pass direct gas-fired curing oven.  The flight bar then exits the oven and is driven to the bend for manual offloading once cooled.

Both systems employed an Alkali Cleaner, Acid etch and the latest chrome free treatment.  Whilst the rinses were towns water and Demin where required (supplied via an RO unit). The Gas-fired drying well oven was supplied with a pneumatically operated lid.

You may also be interested to read our blog on Robotic Wet Spray Paint Facility.

For more information or to discuss your Qualicoat finishing plant requirements, Call us today on 0121 520 8884 or email info@tdfinishing.co.uk.  

 

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