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Basic Information of Types of Refractory Products

Aug 17, 2021, 13:34 PM by Trevor Hileman

Installation Methods: Part 2: Types of Installation Methods of Monolithics/Castables

Types of Refractory Castables

Castable Refractory Classifications

  • Conventional / Regular Castable =>2.5% CaO
  • Low Cement = 1.0% to 2.5% CaO
  • Ultra-Low Cement = 0.2% to 1.0% CaO
  • No Cement Castables = up to 0.2% CaO

No Cement

  • Castables and gun mixes based on colloidal silica and phosphate-based binders

Brands Names: EZ EST (Colloidal Silica Bonded) and Rescobond (Phosphate Bonded)

Basic Castables and Gun Mixes

  • 95 to 97% MgO-based; Dead Burned Magnesia
  • Chrome Ore-Based
  • Fused magnesia-Chrome Grain-Based
  • Chemically Bonded
  • Phosphate Bonded
  • Silicate Bonded

Brand Names: PermanenteRescomagPermagunPermacastCP-40

Lightweight or Insulating Castables

  • Can be cast, gunned, or pumped
  • Cement bonded
  • Contain lightweight aggregate
  • Densities range 20 pcf to 90 pcf
  • Gunned densities higher than cast density

Brand Names: RescocastRescoliteQuiklite



Precast Shapes

  • Cast into molds and shipped as a shape
  • 45% to 98% alumina, alumina resistant
  • Cement bonded
  • Many different shapes

Brand Names: UniformFurnaformMighty FibreMighty Agg

Plastic Moldables

  • Phosphate bonded (50% to 90% Alumina)
  • Air Setting (45% to 90% Alumina)
  • Fine-Grained for Patching

Brand Names: RescoramRef RamRef PatchCorpatch

Gunning Mixes

  • Sprayable” using compressed air
  • 45% to 94% Alumina
  • Magnesite, Fused Magnesia-Chrome
  • Phosphate Bonded, Colloidal silica Bonded
  • Cement Bonded: High Cement, Low Cement

Brand Names: HMProgunRescobond GPermacastPermagunRescocastQuikTurn GEZ EST



Wet Mortars in Pails

  • Air setting and phosphate bonded
  • 60% to 90% silica
  • 45% to 90% alumina, alumina-chrome

Brand Names: Ladlelock – Rescoset, Adament – Adacore – Adaphos



Dry Mortars in Bags

  • Air setting, 40% to 85% alumina
  • Heat setting, 33% to 60% alumina
  • Basic (Magnesite or Chrome Ore)

Brand Names: Lo Set – Alutab– Metaldam (Alumina)

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