NetComposites
Thermwood

New Barrier Gel Improves Surface Aesthetics

12 April 2007

A new technology barrier coat, Crystic Crestacoat, 5000PA, has been introduced by Scott Bader to significantly improve gelcoat surface aesthetics for FRP mouldings.

It is designed to create a glossy, high-lustre, ultra-smooth finish which is claimed to significantly outperform even spray-painted finishes as achieved in the automotive industry.

When used with a ‘matched-system’ skincoat Crystic VE679PA, the new barriercoat gives the best possible surface finish which, in a rigorous 12 month test, also provided the added advantage of osmotic blistering resistance. Scott Bader say that this matched-system can be recommended with confidence for marine applications, or moulded parts used in other demanding environments which are surface-finish critical. This can include laminate products produced for land transport, building and industrial applications or wherever superior gelcoat surface finishes are specified.

Crystic Crestacoat 5000PA can also be applied behind the gelcoat in mould making, substantially improving mould surface finish and subsequent moulding quality. A 1mm thick layer of the barrier coat can dramatically reduce fibre pattern and orange peel effects which can otherwise mar gelcoat finishes. These common defects can be particularly obvious with darker colours, complex shapes and infused parts.

Following extensive research and development, a unique formulation based upon innovative urethane acrylate technology was used by Scott Bader in the creation of Crystic Crestacoat 5000PA.






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