M/s Ratan Dielectrics Guru Saday Road, Kolkata, West Bengal

Mica splittings are laminae split from mica block and thin mica and largely used in the manufacture of built-up micanite products as raw material for the end use as insulating material. The combined thickness of ten sheets of mica splittings taken together does not exceed 0.30 mm (0.012 inch).

The quality classification of muscovite mica being based on visual tests depends on individual opinion. Also products of different mines vary in physical characteristics to such an extent that the development of a single standard with reasonable limits of tolerance becomes an acutely difficult task. Added to these difficulties are the facts that quality classification has to be carried out by a large number of individual workers and that it is highly influenced by such circumstantial factors as lighting conditions etc. Under these circumstances any standard for quality classification of mica can give at best an approximate idea of a particular quality and its reactive position with respect to other qualities.”

RDs special grade of Flexible Micanite mostly made with mica splittings bonded with silicone resin and fibre glass fabric backing on one or both sides is suitable for Temperature Index of at least 200 Deg C and is still most popular across different markets!

mica paper sheetsboards for high temperature application and suited for a temperature index of at least 500 Deg C. Application Used as insulation board in Dynamic Braking Resistors (DBR) equipment for traction application and has very good heat resistance besides other high temperature uses.

Color : Natural

RD offers high quality cut mica condenser films having thickness generally less than 2 mil and is mostly used in the manufacture of silver mica plates used in mica capacitors.