Voltatex is a complete range of high-performance varnishes that meet the C3, C5 and C6 insulation classes according to the international AISI-ASTM A 976-9 standards. Like all of Axalta's C3 electrical steel coatings, Voltatex 1230 is an organic-based varnish that delivers increased punchability, exceptional insulation properties and corrosion resistance.