UV curable conformal coatings and peelable masks which display enhanced fluorescent response

Describes the use of a new type of UV cured coating and adhesive which are not adversely affected by fluorescing agents, so that increased quantities of fluorescing agents can be employed without retarding the depth of cure. Therefore, UV cured coatings and adhesives with this enhanced fluorescent response can readily be observed by the human eye using “black light” or by an on‐line electro‐optical device for quality control analysis of each electronic assembly.