Insulating Castable Refractory

Insulating Castable Refractory is made of aluminate cement, high alumina fines, ceramsite and some other binding agent. Its excellent features of lightweight, high compressive strength, acid and acid gaseous corrosion resistance, thermal insulation, low water absorption, easy construction and etc. This refractory material is the ideal product for positions with alkali erosion in the high temperature. RS Refractory Manufacturer is high acceptable in the refractory industrial. Welcome to get the quote of refractories.

Insulating Castable Refractory
Insulating Castable Refractory

Insulating Castable Refractory Properties & Application

Insulating Castable Refractory, also called Lightweight Insulating Castable. These materials have advantages of medium lightweight and good thermal insulation property.

Its excellent features of good mixability, strong adhesive property, long initial setting time and operable time in construction, fast increasing of strength, strong anti-permeability, no need for acidizing and easy for the mortar joint dense of brickwork can remarkable improve the air impermeability, integrality and lining corrosion resistance of chimney lining, which is the ideal cementing material of chimney stack, high temperature flue and air flue lining.

Features of Insulating Castable Refractory

  • Light weight and easy to construct
  • Acid erosion resistance
  • Thermal insulation property
  • High strength
  • Good mixability

Application of Insulating Castables Refractory

This kind of refractory material is mainly used for linings of heating equipment, such as heat insulating layer in high temperature industrial stoves.

Lightweight Insulating Castable
Lightweight Insulating Castable

Classification of Insulating Castable Refractory

Insulating Castable Refractory is mainly classified according to apparent porosity, binding agent and aggregate varieties, and also according to operating temperature or functional characteristics in the actual use.

  • This Insulating Refractory can be classified into Dense Refractory Castables and light weight Insulating Castables Refractory with higher than 45% apparent porosity.
  • It also can be classified into hydrsulic bond, chemical bonding and coagulating binding castable according to binding agent.
  • Lastly, it can be classified into argillaceous aggregate, high alumina aggregate, silicious aggregate, alkaline aggregate (magnesia, dolomite), special aggregate (carbon, carbide, spinel, zirconite, nitrides) and thermal insulation aggregate (perlite, vermiculite, ceramsite, floating bead, lightweight brick sand, porosity clinker and alumina hollow ball).


Construction of Insulating Castable Refractory
Construction of Insulating Castables Refractory

Technical Index of Insulating Castable Refractory

Insulating Castables Refractory
Item/Index RSQJ-0.5 RSQJ-0.8 RSQJ-1.0 RSQJ-1.1 RSQJ-1.3 RSQJ-1.5 RSQJ-1.8
Bulk Density (g/cm3)≥ 0.5 0.8 1.0 1.1 1.3 1.5 1.8
Service Temperature (℃) 1150 1200 1250 1250 1300 1300 1350
Thermal Conductivity (W/m·k) ≤ 350℃ 0.15 0.25 0.3 0.4 0.45 0.6 0.65
700℃ 0.20 0.30 0.4 0.45 0.5 0.7 0.75
Cold Crushing Strength(MPa)≥ 110℃×24h 1.5 2.0 4.0 5.5 10 15 20
1000℃×3h 1.5 2.0 5.5 6.5 15 20 30
Permanent linear change(1000℃×3h,%) -1.5 -1.0 -1.0 -0.5 -0.5 -0.5 -0.5

RS Insulating Castable Refractory Supplier

Rongsheng Kiln Refractory newly established Castable refractory production line now is running, the capacity is 150 ton per day. As the insulating castables refractory can be used for thermal insulation layer in high temperature industrial kiln and furnace. And also can be used for acid resistance projects such as acidproof pool and groove in industries of petroleum, chemical engineering and nonferrous metals metallurgy. So that RS aims to provide the customer with the best quality castable refractory. If your furnaces is looking for refractory lining, please contact us!

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