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Ultra-Z Coat

ULTRA-ZCOAT is the family name for a series of refractory coatings designed to protect the bricks, monolithics, castables, ceramic fibres and steel shells in furnaces, boilers and various high temperature vessels. ULTRA-ZCOAT refractories are characterised by a very high content of zirconia and other special ceramics which imparts extremely high resistance to the aggressive environments typically encountered at temperatures up to 1900°C. ULTRA-ZCOAT has better adhesion than most conventional zirconia based refractories.

The Three Main Ultra-Z Coat Types :

ULTRA-ZCOAT(N)

  • Finish : Matt, buff coloured, non-vitreous.
  • Temperature Range : Up to 1,900°C

ULTRA-ZCOAT(H)

  • Finish : Vitreous, highly glazed.
  • Temperature Range : Up to 1250°C

ULTRA-ZCOAT(F) : For Ceramic Fibre Coating

  • Finish : Matt.
  • Temperature Range: Up to 1250°C

ULTRA-ZCOAT (N) is the versatile, general purpose product. ULTRA-ZCOAT (H) is used as a slag resistant finish to ULTRA-ZCOAT(N) in annealing furnaces, spouts and funnels.
A 3mm protective layer of ULTRA-ZCOAT can typically increase the working life of any underlying refractory by a factor of two to four times. ULTRA-ZCOAT is supplied in the form of a powder which is mixed with cold water to the consistency of a paste, cement or slurry prior to application by trowel, brush or spray.

Main Uses For Ultra-Z Coat :
  • To reduce the effects of thermal shock.
  • To protect refractories against the aggressive effects of burning fuel oil, gas and solid fuels.
  • To produce a gas tight surface and minimise energy losses.
  • To reduce spalling.
  • To eliminate cracking.
  • To reduce slag adhesion.
  • Generally, to increase the working life of furnaces and reduce the costs of maintenance shut downs.
Applications :

Using a brush, trowel or spray, coat the furnace walls, hearth, ceiling, bridges etc. to a thickness of approximately 3mm. After an hour, further coats of ULTRA-ZCOAT(N) or ULTRA-ZCOAT(H) may be applied as required.