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Mica Gasket Manufacturer & Supplier | High Temperature Electrical Insulation Gaskets | Riddhi Siddhi Metal Impex

Mica Gasket Manufacturer & Supplier | High Temperature Electrical Insulation Gaskets | Riddhi Siddhi Metal Impex

Specification Details
Sizes1/2 Nb, 24 Nb
Gasket StandardsAsme B16.20 Gaskets, Asme B16.21 Gaskets
Outside DiameterNps 1⁄2 Through Nps 8 Is ±0.8 Mm; For Nps 10 Through Nps 24, +1.5 Mm, −0.8 Mm.
Inside DiameterNps 1⁄2 Through Nps 8 Is ±0.4 Mm; For Nps 10 Through Nps 24, ±0.8 Mm.

Mica Gasket Supplier in India, Heavy Engineering & Process Plant Gaskets

Riddhi Siddhi Metal Impex is a reliable Mica Gasket Manufacturer in India, industrial-scale sealing and insulation services (high temperature). These gaskets are produced on the basis of high-quality muscovite and phlogopite mica sheets with metal or stainless steel inserts to guarantee them dimensional stability and thermal resistance even at the highest thermal conditions. They are commonly found in furnaces, boilers, heaters, turbines, and electrical equipment and are very strong with respect to dielectric capacity and even chemical and oxidational resistance. The products have a good presence in the B2B business sector, where they are being supplied with accurate cutting accuracy, smooth surface finish, and uniform performance in continuous heat operations.


The other product that is formed is the Reinforced Mica Gasket. In this case, the stainless steel layer on the insert makes it possible to increase the mechanical strength without disintegrating when undergoing the process of thermal cycling. The reinforced mica gasket performs very well in the exhaust systems, heat exchangers, and flange joints at high temperatures where normal soft gaskets cannot perform. This gasket has excellent insulating properties and is used in heavy engineering, petrochemical units, and power plants.

Standard Mica Gasket Weight Chart

Size (NB)Outer Diameter (OD) mmInner Diameter (ID) mmThickness (mm)Approx Weight (Kg/Pcs)
15 NB952230.08
20 NB1052830.10
25 NB1153530.12
32 NB1404330.18
40 NB1504930.22
50 NB1656130.28
65 NB1857730.36
80 NB2009030.45
100 NB22011530.60
125 NB25014130.82
150 NB28516931.10
200 NB34022031.75
250 NB40527332.60
300 NB46032433.50
This table shows the standard dimensions and approximate weight of mica gaskets based on nominal bore size. It helps engineers and buyers select the correct gasket for piping systems and flange connections. Proper size and weight selection improves sealing efficiency and installation accuracy.

Mica Gasket Pressure Class Table

Pressure ClassCommon Thickness (mm)Temperature Resistance
Class 1502 – 3 mmUp to 550°C
Class 3003 mmUp to 650°C
Class 6003 – 4 mmUp to 750°C
Class 9004 mmUp to 850°C
Class 15004 – 5 mmUp to 900°C



Type of Sub-products

Frequently Asked Questions

How durable are mica gaskets under fluctuating pressures?

What sizes and thicknesses are available in Mica gaskets?

In which industries are mica gaskets most commonly used?


Countries We Export

  • India


Cities We Supply

  • Lucknow

  • Mumbai

  • Nashik

  • Pune

  • Rajkot

  • Moradabad

  • Angul

  • Rudrapur

  • Hosdurg

  • Gandhinagar

  • Rajahmundry

  • Durgapur

  • Bharuch

  • Panipat


Industries We Serve

  • Sugar industry

    Sugar

  • Oil And Gas Industries industry

    Oil And Gas Industries

  • Paper Mill industry

    Paper Mill

  • Power Plant industry

    Power Plant

  • Bridge And Building industry

    Bridge And Building

  • Aerospace Industries industry

    Aerospace Industries

  • Automobile Industry industry

    Automobile Industry

  • Electrical Industry industry

    Electrical Industry

  • Defense Industry industry

    Defense Industry

  • Construction & Fabrications industry

    Construction & Fabrications

  • Ring Man Units industry

    Ring Man Units

  • Railways industry

    Railways

  • Gasket Industry industry

    Gasket Industry

  • Pharmaceuticals Industry industry

    Pharmaceuticals Industry