Electric insulators, electrical insulating mica products, namely, micaceous tapes, micaceous foils and micaceous sheets, mica and goods made of these materials and not included in other classes, namely, mica-based insulating papers, mica-based insulating tapes, mica-based insulating laminates, mica-based laminated rigid plates, mica-based flexible plates, mica insulation for coils in induction furnaces; insulating varnishes and paints