Micamafco Christopher Road, KOLKATA, West Bengal

Muscovite dry ground Mica is extensively used in mild steel rutile based welding electrodes. In welding electrodes a core of steel wire is coated uniformly with a “flux” comprising mica as a lagging compound. The mica coating provides two distinctive types of protection to the welding rods. Firstly, it serves in forming a fusible slag and a good seal at the fusion zone on the arc. Secondly, it resists the action of the heat, gaseous and other surrounding atmospheric oxidization. Nothing can substitute Mica for the above application. In fact, it is the nature of mica coating that largely determines the quality of welding electrodes.

We have an exhaustive range of Industrial Laminates Paper & fabric base Bakelite Sheets in electrical & mechanical variety. Our products that are made from premium quality raw materials are highly in demand for the dimensional accuracy, mechanical strength, heat resistance and low absorption of water. Also known as Phenolic Laminated Sheets, Bakelite Sheet is double-sided high-pressure laminate. These laminated sheets are available as Paper Phenolic Laminates, Industrial Laminate Sheets, Epoxy Laminate Sheet and Electric Insulation Molded Rod (Cotton Cloth Based), in a wide range of thickness and grades. Experts to ensure the appropriateness of design, glossiness and surface finish test these Industrial Laminates Paper & Bakelite Sheets. Our products find application in liquor, agriculture, food and many other industries. We have the expertise to ensure that the products we deal are of the premium quality.

  In the paint industry ground mica is used as a pigment extender that also facilitates suspension, reduces chalking, prevents shrinking and shearing of the paint film, increases resistance of the paint film to water penetration and weathering, and brightens the tone of colored pigments. Mica also promotes paint adhesion in aqueous and oleoresinous formulations. Consumption of dry-ground mica in paint is its second largest use.

Laminae split from block and thin Mica, the thickness of Ten Sheets of which taken together does not exceed 0.30 mm (0.012 Inch), is called Splitting Mica. Splitting Mica chiefly is used in the manufacture of Built-Up Mica or Micanite products as raw material for ultimate use as an Insulating Material.

Commutator Mica Sheets are made of natural muscovite mica splitting’s bonded with a minimum amount of resins in compact, dense and rigid flat plates by means of multiple high temperature pressing primarily for use as insulation between copper segments or bars of commutators used in traction motors as well as other electric motors and turbo-generators. The resin is cured for several hours at high temperature to preclude any oozing or slippage of the mica. The natural cohesive forces between the mica platelets combined with the bonding strength of the rigid thermosetting binder makes these plates adequately resistant to high heat and pressure encountered in the commutators. These plates have high dielectric strength, high thermal stability, good voltage endurance and excellent mechanical and electrical properties. Besides they have extremely low compressibility as is essential in maintaining the commutator's dimensional stability under large centrifugal stresses in operation. Their other properties are smooth surfaces, uniform thickness, great resistance to crushing and excellent machinability. Commutator mica sheets bonded with shellac resins provide excellent overall properties. Epoxy and alkyd yield dimensional stability with ability to withstand extreme compression stress.

Other outstanding properties of these laminated plates are its structure is almost homogeneous and therefore the plates are greatly resistant to delamination. Combustion of its bonding agent will not result in exudations of deleterious nature. They can withstand temperatures up to 500° C in Continuous service and up to 800° C in intermittent service. They virtually release no smoke or odor when exposed to odor when exposed to heat.

Made of high resistance Nichrome Wire with best quality Insulation, i.e., Mica, Micanite, or Mica Paper. Available in all usual sizes and patterns in both voltage and different wattages as per customers.

Strip Heaters consists of high resistance Nichrome wire insulated in MicaMicanite. Sheathed in Stainless SteelBrassTin. Terminal at one end or both ends. Available in sizes wide 1" to 4". Length 4" to 40".

Suitable for use in hot, dry gas applications such as exhaust manifolds, turbines, turbo chargers and air heat exchangers,Excellent Heat resistance, continuous temperatures up to aprox. 800° C Shot term temperatures up to approx. 900° C, Can be used for very high operating pressures,High compressibility and good adaptability; also suitable for use in existing plants.

Mica capacitors are manufactured out of silvered mica plates staked alternatively between layers of metallic foils (brass, tin, alloy, lead or copper) and then clamped together to produce voids between the foils and the dielectric, as well as, to reduce the capacitance variation and size to improve stability. On each of the stake an annealed copper lead wire contact or terminal is soldered.

Knife dressed Sheet Mica of a minimum thickness of 0.18 mm(0.007 Inch), is called Block Mica. Block Mica is obtained in size as large as 30 to 35 cm.sq. (12 to 14 Inches sq) beyond, which is practically rare and far too expensive. It is available in sheets with an average thickness between 0.18 - 0.75mm (0.007 - 0.030 Inch). Block Mica is supplied both in natural (random) and calibrated thickness as per customers demand.

We have an exhaustive range of Industrial Laminates Paper & fabric base Bakelite Sheets in electrical & mechanical variety. Our products that are made from premium quality raw materials are highly in demand for the dimensional accuracy, mechanical strength, heat resistance and low absorption of water. Also known as Phenolic Laminated Sheets, Bakelite Sheet is double-sided high-pressure laminate, Industrial Laminate Sheets, Epoxy Laminate Sheet and Electric Insulation Molded Rod (Cotton Cloth Based), in a wide range of thickness and grades. Experts to ensure the appropriateness of design, glossiness and surface finish test these Industrial Laminates Paper & Bakelite Sheets.

Thickness : 0.5 mm to 50 mm

Ground Mica for joint cement and gypsum plastic wall-boards – Micamafco offers Muscovite dry ground Mica + 100 Mesh (+150 microns) Mica Powder for Gypsum plaster board , wall board and cement compounds. The Mica acts as a filler and extender, provides a smooth consistency, improves the workability of the compound, and provides resistance to cracking.    

MICAMAFCO Dry Ground Mica Powder using the best raw material from our own mines. Manufactured in hammer mills, our Dry Ground Mica Powder is screened to the required mesh size. High quality raw material is used for manufacturing it. The standard grades we offer are 60 mesh and 100 mesh. Our mica finds application in paints, plastics, welding electrodes, wall board joint compounds, etc.

The term 'Fabrication' applies to operations, such as: cuttings, stamping and punching of natural sheet mica to specified size, shape, thickness and design within close dimensional tolerance for electrical and electronic end-users. Normally, mica is fabricated with compound dies by foot or power punch process, especially if the finished piece contained perforation of any kind. A compound die punches the outside shape and all the inside holes with one stroke of the press most accurately. The compound die necessary for stamping natural sheet mica may be grouped in two general categories. One category comprises the highly complex dies required to produce Mica Spacers containing a number of perforations in various sizes and shapes for use in electronic tubes. The extremely critical dimensions and spacing of the perforations can be obtained only with fully designed and accurately constructed dies.

MICAMAFCO Dry Ground Mica Powder using the best raw material from our own mines. Manufactured in hammer mills, our Dry Ground Mica Powder is screened to the required mesh size. High quality raw material is used for manufacturing it. The standard grades we offer are 60 mesh and 100 mesh. Our mica finds application in paints, plastics, welding electrodes, wall board joint compounds, etc.

We have an exhaustive range of Industrial Laminates Paper & fabric base Bakelite Sheets in electrical & mechanical variety. Our products that are made from premium quality raw materials are highly in demand for the dimensional accuracy, mechanical strength, heat resistance and low absorption of water. Also known as Phenolic Laminated Sheets, Bakelite Sheet is double-sided high-pressure laminate. These laminated sheets are available as Paper Phenolic Laminates, Industrial Laminate Sheets, Epoxy Laminate Sheet and Electric Insulation Molded Rod (Cotton Cloth Based), in a wide range of thickness and grades. Experts to ensure the appropriateness of design, glossiness and surface finish test these Industrial Laminates Paper & Bakelite Sheets. Our products find application in liquor, agriculture, food and many other industries. We have the expertise to ensure that the products we deal are of the premium quality.

Muscovite Powder is widely used as a filler in non – asbestos acoustic products for treatment of automobile under- bodies and noise protection systems because of functional morphological and surface characteristics. The addition of Mica Acoustics compounds improves its materials properties significantly, such as, improve heat and UV resistance, increase tensile and flexural strengths, reduce isotropic shrinkage and permeability, enhance the dielectric and insulating properties, etc. In fact Micamafco Mica is a unique mineral which offers the multiple advantage of noise and vibration absorption, reduces flammability, adds low temperature impact resistance, high thermal stability and multi-directional lateral re-enforcement to composite plastic systems. No other product provide such functional enhancement to acoustic bitumen compounds and plastic polymer compound such as superior quality and excellent dimensions stability than Micamafco Mica.