Abstract: Disclosed is a curable resin composition comprising: (a) a liquid siloxane oligomer comprising polymerized units of formula R1mR2nSi(OR3)4-m-n, wherein R1 is a C5-C20 aliphatic group comprising an oxirane ring fused to an alicyclic ring, R2 is a C1-C20 alkyl, C6-C30 aryl group, or a C5-C20 aliphatic group having one or more heteroatoms, R3 is a C1-C4 alkyl group or a C1-C4 acyl group, m is 0.1 to 2.0 and n is 0 to 2.0; (b) non-hollow nanoparticles of silica, a metal oxide, or a mixture thereof, the non-hollow nanoparticles having an average particle diameter from 5 to 50 nm; (c) a volatile monoprotic alcohol cosolvent; (d) a surfactant; and (e) a photoacid generator. Further disclosed are associated methods and manufactured articles.