Using ultra violet radiation curable resins for printed circuit coatings

As is the case with conventionally cured coatings, there is no ideal UV curable material. In fact, because of its relative infancy, the selection of these resins is limited. Nevertheless, using commercially available systems and curing equipment, a wide enough spectrum of properties can be obtained, either with individual resins or blends, to meet requirements for selected applications. A judicious tradeoff of properties, in conjunction with a realistic set of acceptability criteria, will allow advantage to be taken of the unique processing features of UV curable resins.