Easy visual inspection with the LED405FL3 adhesive 05 November 2021

Master Bond LED405FL3 is a flexible one component, LED curing adhesive system with excellent optical clarity and a refractive index of 1.51. Its flexibility allows for stress minimisation especially when bonding substrates with different coefficients of thermal expansion. It also utilises a fluorescent dye for detection purposes, which enables easy visual inspection.

This no mix system cures fully tack free upon exposure to a 405Nm wavelength light source without any oxygen inhibition. In thinner sections, full cures can be achieved in 30 - 45 seconds. The rate of cure depends upon the intensity of the light source, the thickness of the adhesive layer and the distance from the light to the adhesive.

LED405FL3 is serviceable from -100°F to +250°F. It cures with a hardness of around 5 - 15 Shore D at room temperature. Additional performance properties include electrical insulation as well as resistance to thermal cycling, shock and vibration.

LED405FL3 is a low viscosity system that may be used for small potting and encapsulation applications assuming that there are no shadows or concealed areas. This solvent free, RoHS compliant compound is available in syringes, ½ pint, pint and quart containers.

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

Having joined the magazine in 2012, Claire developed her knowledge of the industry through the numerous company visits, exhibitions and conferences she attended both in the UK and abroad.

Claire prides herself on keeping readers well informed and up to date with the latest industry news.