Transparent Epoxy Potting Compound 2:1 Self-Leveling AB Glue 70 Shore D for Wind Turbine Converter Encapsulation HN-5506A/B is a high-transparency two-component epoxy potting compound with a 2:1 mix ratio, specially formulated for wind turbine converter encapsulation, power electronics protection and high-voltage insulation . The self-leveling low-viscosity system flows easily around PCBs, IGBT modules and sensitive components, and cures into a transparent, hard, bubble-free