UVD5271 is an UV curable solder mask, overcoat, or dielectric designed for rigid substrates. UVD5271 offers rapid curing combined with outstanding adhesion and resistance to solvents, moisture, and the soldering process. It is less sensitive to surface cleanliness than other UV curable materials. It offers excellent electrical and environmental integrity after soldering and cleaning, and outstanding line definition, typically >8 mils. Heraeus also offers a series of compatible, thermally cured conductors.