LIGHT-SHIELDING MOISTURE-PROOF INSULATING COATING MATERIAL, SEALING/INSULATING TREATMENT METHOD USING LIGHT-SHIELDING MOISTURE-PROOF INSULATING COATING MATERIAL, AND ELECTRONIC COMPONENT WHICH IS SEALED/INSULATED USING LIGHT-SHIELDING MOISTURE-PROOF INSULATING COATING MATERIAL

摘要

Provided is a photocurable moisture-proof insulating coating material which has little impact on the environment, can exhibit excellent deep part curability upon the irradiation of a small quantity of light, is hydrophobic, has high long-term insulation reliability, and also has a light-shielding property against visible light in a broad wavelength range. A moisture-proof insulating coating material comprising (1) a compound containing a (meth)acryloyl group, (2) a photopolymerization initiator and (3) at least two types of dyes, said coating material being characterized in that: a 500 μm-thick cured film produced by curing the coating material has a total light transmittance of less than 10%, wherein the sum total of wavelength regions which fall within the wavelength range from 400 to 700 nm and in which the transmittance becomes 10% or more is 50 nm or less; and a cured film produced by irradiating the coating material applied in a thickness of 1 mm or more with ultraviolet ray under such conditions that the illuminance at a wavelength of 365 nm is 400 mW/cm2 and the light exposure quantity is 300 mJ/cm2 has a thickness of 500 μm or more.