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2800°F Insulating Fire Brick 9" x 4.5" x 3"

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A high-quality lightweight high-temp Insulating Fire Brick rated to 2800°F that can be installed in either a backing or a hot-fired application.  The low iron content is also suitable for reducing and high CO environments. It can withstand the consistent operating temperature of 2650 degrees, therefore perfect for high-temperature forge welding. For a more economical insulating fire brick see our 2600°F Insulating fire brick.

IFB's bricks are much more porous, and not as mechanically robust as the Clipper DP bricks, though they can be stacked dry or set using SAIRSET refractory mortar.  Though they have much less heat sink than denser bricks, these can still be coated with ITC 100 HT and benefit from the added efficiency of ITC 100's heat reflection properties.


  • 4.5" Wide x 9" Long x 3" Thick
  • High-temperature rating
  • Easy to cut/shape

Sold individually.


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