Flexible one component dual cure epoxy 01 May 2024

Master Bond UV23FLDC-80TK is a moderate viscosity, cationic type system that offers both UV light and heat curing mechanisms. It cures readily within 20 – 30 seconds when exposed to a UV light source emitting a wavelength of 320Nm – 365Nm.

The adhesive can also undergo a secondary heat curing for shadowed areas, typically curing in 60 – 90 minutes at 80°C – 85°C. The system’s adaptability to varying depths and applications, such as encapsulation and bonding, enhances its versatility.

UV23FLDC-80TK has a viscosity of 25,000 cps – 50,000 cps and is highly thixotropic, which is advantageous for applications where minimal flow is required. It has a low tensile modulus of 250 psi – 500 psi, and a high elongation of 90% – 100% at room temperature. Its toughness and flexibility allow it to withstand rigorous thermal cycling, making it well suited for applications where low stress is critical. The system features excellent electrical insulation with a volume resistivity exceeding 1,014 ohm-cm.

UV23FLDC-80TK is not susceptible to oxygen inhibition. It bonds well to metals, glass, ceramics, and many plastics, including but not limited to acrylics and polycarbonates. It has a service temperature ranging from -80°F to +300°F (-62.2°C – 148.9°C). It is available in a wide range of packaging options, including syringes, ½ pint, pint, quart and gallon containers.  

Deputy Editor

Claire Aldridge Deputy Editor t: +44 (0) 1727 743 889


Having spent a decade in the fastener industry experiencing every facet – from steel mills, fastener manufacturers, wholesalers, distributors, as well as machinery builders and plating + coating companies, Claire has developed an in-depth knowledge of all things fasteners.

Alongside visiting numerous companies, exhibitions and conferences around the world, Claire has also interviewed high profile figures – focusing on key topics impacting the sector and making sure readers stay up to date with the latest developments within the industry.