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Refractory Coatings

Refractory linings in furnaces like billet re-heating furnace in hot rolling, sealed quench furnaces in heat treatment and most furnaces with refractory bricks face the following problems:
Thermal shock crackingEnergy leaks through thermal shock cracks in refractoryExcessive furnace shell temperature heatingNon-uniform heating in different zones of furnaceLow refractory lining lifeHigh fuel consumption due to energy leaks
ESPON refractory coatings are formulated to solve these problems. ESPON refractory coatings can withstand up to 1800 deg. C., and prevent thermal shocks in refractory lining. Hence, life of the refractory is increased.
Due to high emissivity of ESPON refractory coating, heat is reflected back into the furnace, thereby reducing time to achieve required temperature. Furnace retains high temperature for a long period even after shut down. This reduces start-up time when furnace is switched on next day. Heat uniformity is facilitated and maintained by the reflective ESPON coating. Furnace outer shell temperature does not geat excessively heated up. These factors lead to increased refractory lining life and lower fuel consumption. 
Due to its ability to withstand high temperature, ESPON refractory coatings are also used in Acid Regeneration Plants to prevent slag adhesion.

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ESPON-RCP Refractory Coating is a zircon based product that is used to protect refractory bricks lining in furnaces.

Benefits of ESPON-RCP Refractory Coatings:

  • Strengthens refractory lining by increasing thermal shock resistance
  • Prevents energy leaks by preventing cracking of firebricks, castables or monolithics
  • Improves emissivity of refractory lining and ceramic blankets
  • ESPON-RCP reduces consumption of oil, coal, gas or electricity in furnace operation
  • Prevents carbon deposits on burner blocks
  • Prevents slag adhesion to refractory lining. Also found useful in Acid Regeneration Plants

Specifications of Refractory Coatings:

Packing25 kgs. special HDPE container
DescriptionOff-white paste free from visible extraneous matter
Weight per litre1.4 kgs ± 0.1 kg
Flash PointNil. Does not catch fire
SafetyNon hazardous. Non flammable. Non toxic during storage or use
Shelf Life12 months in factory sealed condition

Additional Information:
  • Item Code: ESPON-RCP
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Srikar Shenoy (Director)
Steel Plant Specialties LLP
No. 211, Raikar Chambers
Govandi East, Mumbai - 400088
Maharashtra, India
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