Electrical insulation is material used to prevent unwanted flow of current between conductors or to earth, keeping equipment safe and reliable. In heavy electrical equipment that job is done by rigid insulating components – busbar supports, coil formers, slot wedges, washers and switchgear panels – rather than flexible tape. Tufnol makes these from phenolic, epoxy cotton and glass epoxy laminates. Browse the full range of Tufnol materials.