Wood Stove Isinglass Window 2" x 3" Mica Glass

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2 x 3 Inch
0.003 - 0.005 inch
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This sheet of mica glass has dimensions of 2" by 3" and a thickness ranging from .003 to .005 inches. It's an isinglass window suitable for vintage wood stoves, coal stoves, and furnaces. Despite its clear plastic appearance, it can withstand temperatures as high as 1800°F. Furthermore, mica glass can be cut to smaller sizes using scissors easily.


The only size available is this one, so if you want to cover a bigger space, it may be necessary to join multiple mica glass panels together.

What is an Isinglass Window?

Isinglass, which is composed of a thin and transparent sheet of mica - a type of silicate mineral, is an ideal material for use in small windows on furnaces, heating stoves, and peepholes in boilers due to its high resistance to extreme temperatures and a lower likelihood of shattering under such conditions. Additionally, caring for and maintaining isinglass is simple:

  • First, wash the Isinglass Window with clean water. 
  • Add three drops of gentle, non-detergent soap to around 1 pint of water.
  • Wash the Isinglass Window with the soapy solution and a soft clean cloth.
  • Thoroughly rinse with new, clean water and a 2nd clean cloth.
  • Use a third clean, absorbent cloth to dry the Isinglass Window.
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Warranty Information

Fast Replacement Glass does not offer warranties on performance or customer use of the mica.

How a customer handles, installs, and uses processes the mica product is solely the customer's responsibility.

Fast Replacement Glass cannot be held liable for breakage, damage, or failure of the product due to wrongful installation or if the mica glass pane is too tight and doesn't allow for thermal expansion during operation of the heating appliance.

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