E35B is a stable dispersion of discrete, dispersed, and functionalized carbon nanotubes (D’Func) in urethane dimethacrylate (UDMA), BR-952. The Masterbatch can be used in rigid, high tensile strength SLA, DLP, or jettable resins to provide conductivity and decreased resistivity. ESD resins produced with E35B can achieve uniform conductivity with high resolution and isotropic mechanical properties.