World Leader in Designing and Manufacturing of high precision muscovite and phlogopite mica component.

High Precision MICA Windows For Gieger Muller Tubes & Counters

Call us at (718) 461-6233

Call us at (917) 500-1697

Email: bmmicacoinc@yahoo.com

High Precision MICA Windows For Geiger Muller Tubes & Counters

We are the largest manufacturer and stockist in the world of Scratch-free, V-1 Quality (ASTM D-351-97) Mica Windows for Geiger-Muller (GM) Tubes and Proportional Counters in various sizes & shapes, as thin as 1.2mg/cm aerial density thickness. We manufacture as per customers specifications and drawings.

Liquid Level Gauge Glasses, MICA Shields & Gaskets (Includes Complete Unit Ready For Installation)

We offer best quality branded products like Ilmadur, Klinger, Flat borosilicate gauge glasses-Standard (Reflex & Transparent) and Hi-Pressure Transparent. Gauge glasses are mostly used in liquid level gauges.

Bare Uncemented MICA Quarter & Half Wave Retarder

Muscovite Sheet Mica of ASTM (D-351-97) V-I, having an even surface that is optically flat, transparent, scratch-less and free from finger prints, is specially used for Broadband Wave plates or Retardation Plates.

Lexan and MICA Lenses

We offer best quality branded products. These are available in 0.030″, 0.040″ and 0.060″ (Aprox) (customised order accepted).


We fabricate and supply various types of mica products, in ALL SHAPES AND SIZES (standard, geometric shapes, or as per your specifications).

In addition to numerous applications of mica, our superfine, scratch-free mica is one of the most vital and major components used in research and development.

B & M Mica Co., Inc. is your PRIMARY SOURCE for all your mica requirements. Our mica is of the highest quality, and purity and is perfect for all your needed applications. B & M Mica provides high-tech mica for your instruments to protect them from extreme temperatures and from corrosive environments.


  • Metalizing diaphragm valves and sheets cut to exact size and thickness for metalizing and other applications.
  • Metalizing resistance NiCr Deposit Cards service available on Fiberglass, Mylar, Kapton & Mica Standard Sizes 5″ x 12″, 2″ x 5″, 12″ x 12″ and customer’s sizes; Resistance: 50-400 ohm.
  • STM, AFM, SFA, beam bender & thin film technology, Scanning Electron Microscope (SEM) to resolve measurement.
  • DNA & DNA-protein, carbon film production.
  • Windows for microwaved, Klystron and Geiger tubes, nuclear and medial instruments.
  • Liquid level gauge glasses (Transparent, Reflex, Hi-Pressure and Aluminosilicate), Mica and KEL-F shields & gaskets (include complete UNIT Ready for Installation).
  • Vacuum tight disks, precision components, Retardation plates, single wave & broadband mica plates for Laser Industries.
  • Components for X-Ray apparatus, Computers, Optical Instruments, laser equipments for use in electronic industry, synchroton x-ray window application.
  • Components for special applications and custom made as per customer’s drawing and specifications.
  • Prototype or production qualities.

We offer very high-quality components at competitive prices and prompt delivery on time. Inventories stocked of all major applications on customer’s request. Compare our quality, prices and services with our competitors!

We custom manufacture to your blue prints, samples or specifications in any quantities from small lot to high volume.

"B & M Wants Your Toughest Job"