Introducing Qualicoat 3.0

by | Oct 12, 2021 | Aluminium

In 1986 several national associations encompassing coaters of architectural parts formed a quality label organisation called Qualicoat. The aim was to standardise procedures and increase the quality of powder coatings for its membership.

As an association it is our membership who continue to work together and undertake research which enables the Qualicoat Standard to be updated on a yearly basis. The aim of the membership continues to be to produce the highest quality coatings for extended life expectancy. With membership that includes the coaters, pretreatment suppliers and powder manufacturers, Qualicoat licences members encompasses the complete supply chain.

Preparing aluminium for powder coating

Qualicoat is a worldwide organisation which works to a single standard, so a specification by an architect in London for a Qualicoat finish will be coated to the same standard in any city across the globe. Membership continues to grow and includes all of the professional architectural coaters in the UK & Ireland. To ensure standards are maintained coating members welcome unannounced inspections twice a year by an association nominated test house. Members who fail the inspection could loose their Qualicoat licence.

As with any applied finish, pretreatment is crucial to ensure that the bond of the finish is maintained, one of the crucial elements is the alloy substrate and its cleaning. In the Qualicoat standard and the BS EN 1279, the surface is to be etched with acid or alkaline to remove impurities which is followed by a pretreatment system that seals the substrate and creates the key for coating adherence. Qualicoat 3.0 goes further by looking at the alloy structure itself.

With the extensive research completed by the Qualicoat membership it is now recognised that the alloy makeup can effect the extended life expectancy of the powder coating. Enter the Qualicoat 3.0 Label for premium corrosion resistance class.

The Qualicoat 3.0 Label allows for the use of both primary and recycled aluminium and is to be awarded to the aluminium extruder. Aluminium Qualicoat 3.0 requires an aluminium grade 6060 or 6063 where the relationship between alloying elements, extrusion quality, microstructure and corrosion potential meet the details laid down in the appendix of the latest Qualicoat Standard. A Qualicoat 3.0 specification will require a coating member to carry the ‘Seaside’ class membership as this is a prerequisite coating procedure for Qualicoat 3.0.

Angus Mackie – Qualicoat UK & Ireland Chair

The aluminium extruder will then get the “Aluminium Qualicoat 3.0 grade” Label after a satisfactory result of the following tests; an Optical Emission Spectroscopy test; an Anodic Cyclic Polarisation test and an Metallographic Study.

Qualicoat 3.0 will be driven by specifiers who are looking to achieve even higher levels of robust coatings for extended service life. Further information is available from Qualicoat UK & Ireland.

The next Qualicoat UK & Ireland members meeting takes place on 19th October 2021, at the Arden Hotel & Leisure Club, Solihull , please contact the General Secretary, Jan Lukaszewski, via the Qualicoat UK & Ireland website, should you wish to attend. For details on the availability of various colours and finishes contact any Qualicoat UK & Ireland member for more information. For updated information about the use and specification of Qualicoat in the UK and Ireland, please visit the UK & Ireland Association website at www.qualicoatuki.org

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