Full Service Refractory Supplier and Contractor


Refractory Engineers, Inc. (REI), in business since 1962, distributes high quality refractory materials and high temperature consumable products through the Midwest.

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REI and CTI provide refractory products and services, including boiler and furnace shutdown maintenance, for many industries and industrial applications.

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construction services

Ceramic Technology, Inc. (CTI), located in Indianapolis, provides refractory construction services and engineering throughout the Midwest.

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Refractory News & Blog


Insulation Burn TowerMarinite Board is the preferred burn building insulation material used in Fire Fighters training facilities. Marinite requires less maintenance than other training tower systems and will save you money by prolonging the life of your training tower burn building.


  • Marinite combines structural strength with high thermal insulation values which reduces temperature offering superior protection to fire fighters. 
  • Marinite resists cracking and spawling while standing up to rapid heating and cooling cycles experienced in flashover and live fire training.
  • Marinite is incombustible, damage resistant and non-corroding. The 4' x 8' sheet is available in many thicknesses and is easily fabricated and shipped to you to fit any new construction building or as an existing building replacement panel.

Get a hold of Ceramic Technology for any Burn Tower repair needs.


ADVANTAGES OF INSULATING FIREBRICK (IFB) - Refractory Engineers (Indiana)Insulating Fire Bricks are a special type of brick that can handle high temperatures and act as insulation. Insulating firebrick is used to line fireplaces, fireboxes, furnaces and kilns. It is sometimes referred to as “refractory brick” and is designed to withstand temperatures of up to 3,200⁰F while actually conducting very little of that heat in order to provide a greater level of energy efficiency.

Advantages of IFB

Insulating Firebrick has many advantages, including:

  • High Insulating Value - The light weight and high insulating value of BNZ IFB make possible thinner furnace walls, improved efficiency and lower operating costs.
  • Strength - The high compressive strength of IFB allows for self-supporting structures at elevated temperatures. IFB are compatible with dense fire brick, and add strength to the whole construction.
  • Low Heat Storage - Lower heat storage versus dense brick means reduced fuel costs and faster heat-ups in cyclically operated heating equipment.
  • High Purity - BNZ IFB are low in impurities such as iron, which can adversely affect refractory performance in many applications. They are used in many furnaces with controlled atmospheres.
  • Accurate Dimensions - Because BNZ Insulating Fire Brick are machined to precise dimensions, courses can be laid quickly and easily, and the result is a stronger, tighter refractory lining resulting in less heat loss through the joints.

Ceramic fiber offers many great characteristics:

  • Benefits of Ceramic Fiber InsulationExcellent Thermal Shock Resistance
  • High Temperature Stability
  • Low Thermal Conductivity
  • Low Heat Storage
  • Light Weight Insulation (easy to handle)
  • Superior Corrosion Resistance

Get a hold of Refractory Engineers, Inc. today for any of your ceramic fiber needs!

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