Adhesive colour-check upon curing eases bonding inspection

November 19, 2019 //By Julien Happich
Adhesives specialist Intertronics is supplying the expanded product range of Dymax Encompass adhesives, a patented technology that combines the benefits of See-Cure colour change and Ultra-Red fluorescence into one light-curable product.

This combination means that manufacturers can benefit from the production efficiencies associated with rapid, on-demand curing, while also safeguarding against quality issues. Manufacturers can quickly confirm adhesive placement and cure, as well as easily inspect the bond-line.

In their uncured state, Dymax Encompass adhesives are blue, enabling visual confirmation of the adhesive’s quantity and placement. See-Cure technology means that they will transition to clear after they have been exposed to sufficient UV curing light, which visually confirms that the adhesive is cured.

Due to the incorporation of Ultra-Red technology, the adhesives fluoresce red under black light so that manufacturers can easily inspect the bond-line post cure, either as a manual or automated process. It is particularly effective when bonding plastics that naturally fluoresce blue, such as polyvinyl chloride (PVC) and polyethylene terephthalate (PET). It produces a unique energy peak that cannot be reproduced by other compounds, which means that manufacturers can assemble or mark their products for positive identification. Dymax Encompass adhesives are available in formulations which are curable with LED-based UV curing equipment, and in grades which have passed ISO 10993 biocompatibility testing for use within medical devices.

Intertronics -

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