Ruby Mica Co. Pvt. Ltd. Offers Flexible Rigid Mica Sheet. Ruby Mica Co. Pvt. Ltd. Is the manufacturer and exporter of mica. Flexible Rigid Mica Sheet is available in size 1200 x 1000 mm and thickness 0.1-25 mm. Flexible Rigid Mica Sheet comes with the bond of silicone, epoxy, alkyd vinyl and other resins. Flexible Rigid Mica Sheet is used for various purposes chiefly for electro-thermal insulation in many industries.