Qualicoat UK & Ireland

UK & Ireland

the architectural coating standard

Qualicoat Global

QUALICOAT Class Specification


The formulation of powder coating surface treatments has advanced over the forty years that powder coating was first specified for architectural metalwork. Many of the original projects are still in use today with the coating still doing its job protecting the aluminium or steel substrate.  Much of the current architectural powder coating in the UK uses ‘Class 1’ powders which offer excellent adhesion and long life.

Whilst Class 1 powder protection properties are excellent, there are two further measures that specifiers need to take into consideration when specifying powder coating, that of colour variation and gloss retention.  By using powder with more robust compounds, typically with an increase in cost, both colour variation and gloss retention can be tighter controlled for a longer period.

Typically, these QUALICOAT Class 2 powders, also known as ‘Super Durable’ powders, offer much tighter tolerances over time on colour variation and gloss retention without sacrificing the high substrate protection offered by the powder coating process. Coated over a chrome, chrome-free or flash anodising pretreatment process these powders can also be applied to meet the QUALICOAT ‘Seaside Class’ for projects exposed in a harsher environment.

Seaside Class is recognised by a deeper etching of the aluminium substrate of the aluminium. For standard pretreatment, the total etching is specified as being at least 1.0 g/m2, when ‘Seaside Class’ is specified an enhanced pretreatment etch of at least 2.0 g/m2 is required, that is 2/g/m2 of aluminium surface removed.  This deeper etch removes more surface contaminants on the aluminium and offers both better protection of the substrate and key for the powder coating. QUALICOAT coating members offering this enhanced Seaside Class are denoted by the qualification on the QUALICOAT website.

QUALICOAT is the right specification for powder coating over aluminium substrates, and the QUALICOAT powder Classes provide specifiers more choice to select the best finish for their project.

All powder formulations form part of the QUALICOAT approval process and are applied by licensed applications in the UK & Ireland, and across the globe. For specification support any member of the association can offer advice and guidance, for updated information about the use and specification of QUALICOAT in the UK and Ireland, please visit the associations' website at www.qualicoatuki.org

Qualicoat UK & Ireland

The National Metalforming Centre

47 Birmingham Road

West Bromwich

B70 6PY

Chairman - Alan Maginnis - alan@sprintcoatings.com

General Secretary - Jan Lukaszewski - j_lukaszewski@alfed.org.uk

 

 

tel. +44 (0) 121 601 6746

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