Insulating Castable

Insulating Castable is made of aluminate cement, high alumina fines, ceramsite and additives at a certain ratio. Insulating Castable has the features of light weight, heat insulation and easy construction and so on, and is widely used as the thermal insulating lining of thermal device in industrial furnaces, kilns, heat insulation layers and other heat projects.

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Specification Of Insulating Castable



YH-Q0.6 YH-Q0.8 YH-Q1.0 YH-Q1.2 YH-Q1.4 YH-Q1.6 YH-Q1.8
Bulk Density g/cm3 ±0.1 0.6 0.8 1 1.2 1.4 1.6 1.8
Cold Crushing Strength Mpa≥ 110℃×24h   2.5    4    6   20   25
Linear dimensional change 800℃×3h   –   0~1.5  0~1.2   0~0.8   0~0.7  0~0.6  0~0.6
TCS≤ 350±25℃   0.2   0.25   0.35   0.45   0.6   0.7   0.9
Maimum service temperature  600   800   1000   1100   1200  1300   1400

Insulating Castable Composition

Insulating Castable is made of a certain refractory material such as alumina, adding some binder being made into powered refractory materials, so it has good liquidity, workability and adhesiveness, naturally, its initial setting time and construction operation time is long. As for the construction aspect, it was usually used by the methods of ramming, vibration, spraying and casting. During the process of construction, its strength grows fast, and with the strong resistance to permeability, light weight insulation castable ensures the density, integrity and anti-corrosion ability of the masonry.

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Insulating Castable Properties

Insulating Castable properties and features: Light weight insulation castable has good heat preservation performance and strong integrity, so it saves energy, over 20%, than ordinary refractories. With high refractoriness and spalling resistance performance, it has long service life. Meanwhile, it can be used to repair the kiln or furnace, thus improve the service life of such thermal equipment as well, thus saves money.

Insulating Castable has another features, such as light weight, low thermal conductivity, low bulk density, high compressive strength, and resistance to acid corrosion.

light weight castable

  • Strong integrity
  • High refractoriness and spalling resistance
  • Light weight
  • Low thermal conductivity
  • Low bulk density
  • High compressive strength
  • Resistance to acid corrosion, etc.

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Insulating Castable Application

Uses of Insulating Castable: It is ideally used in metallurgy, machinery, electric power, chemical industry, petroleum and other industrial furnaces and thermal devices:

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  • Lining of the thermal equipment, and chimney stack;
  • Insulating layer of the high temperature industrial furnace;
  • High temperature flue, rotary kiln, and air duct lining;
  • Acid engineering, such as acid pool and acid tank;
  • Industrial kiln for heat insulation or single-layer lining, etc.


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Insulating Castable Supplier

Zhengzhou Rongsheng Kiln Refractory Co. Ltd is a professional lightweight insulation castable company. It has such refractory insulating castable used for metallurgy, building materials, electric power and chemical industry, etc. and now it has become a high-tech and fast growth enterprise.

You buy super Insulating Castable refractory materials from RS at the most favorable price. The reasons are given below.

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  • First, it has convenient transportation and large stock, which ensures the prompt delivery;
  • Second, it has superior raw materials of insulating castable for the unique the geographical location, which ensures the superior quality;
  • Third, RS has large scale and professional research and sales team, advanced test equipment, and stric check progress.
  • Fourth, rich experience, which ensures the professional information and services, etc.

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Its major business are shaped and unshaped refractory materials.

Shaped Refractory Products

  • High alumina products: Usually used as the high alumina bricks, alumina bubble bricks, and phosphate bonded aluminum bricks, etc. They are used in the blast stove, hot blast stove,  electric stoves, and the cement kilns;
  • Silica refractory products: Hot blast stove, glass kiln, silica brick for coke stove;
  • Clay refractory products: Clay refractory brick, clay brick for the hot blast stove, alkali proof brick and low porosity clay brick for the cement;
  • Alkali refractory products: Magnesia brick, magnesium aluminum brick and Magnesium chromium brick;
  • Special refractory products: Silica mullite brick for cement kiln, wear-resistant refractory product;
  • Insulation refractory products: High alumina brick, clay brick, diatomaceous earth brick, silica insulation refractory brick, insulation products.

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Unshaped Refractory Products

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RS has always takes the excellent lightweight insulating castable and services as the top goal and it has always been adhering to the business purpose of honesty, respectful, innovation, and dedication.

Sincerely welcome customers at home and abroad, and start our friendly cooperation in business and technologies, thus to make progress together!

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