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  1. Vitset 45-Refractory Mortar Ready Mixed 1700°C
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    Vitset 45-Refractory Mortar Ready Mixed 1700°C
    As low as £17.99 £14.99

    Vitset 45 is a versatile, ready-mixed refractory mortar designed to withstand temperatures as high as 1700°C /3100°F. Ideal for trowelling, patching and setting various high-grade refractory and insulation fire bricks rated above 1400°C. Suitable for use with ceramic fibre boards and blankets, making it a practical solution for both repairs and new installations in high-temperature environments.

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  2. Insulating Fire Bricks-VITCAS Grade 26 -2600°F/ 1430°C
    Rating:
    98%
    Insulating Fire Bricks-VITCAS Grade 26 -2600°F/ 1430°C
    Special Price £3.35 £2.79 Regular Price £8.39 £6.99

    Vitcas Insulation Fire Bricks- Grade 26. Resistant to 1430°C (2600°F). Dimensions: 230x114x76mm. The insulating firebricks can be used in a variety of high temperature industrial applications, such as in insulating refractories- gas producers, kilns, furnaces and stress relieving furnaces.

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  3. Vitset 80-Refractory Mortar Ready Mixed 1750°C
    Vitset 80-Refractory Mortar Ready Mixed 1750°C
    Special Price £66.00 £55.00 Regular Price £96.00 £80.00

    Vitcas Refractory Mortar – Vitset 80 is a ready-mixed, high-alumina mortar that withstands temperatures up to 1750°C / 3180°F. It is air-setting and ideal for setting, dipping, coating, and spraying refractory bricks. Suitable for industrial applications like steel production and foundries.

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  4. VITCAS Fire bricks 230x114x76mm
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    98%
    VITCAS Fire bricks 230x114x76mm
    Special Price £3.00 £2.50 Regular Price £4.79 £3.99

    VITCAS Fire Bricks, made with 42% Alumina content. Sized at 230 x 114 x 76mm and designed to endure extreme conditions up to 1430°C. Ideal for a range of high-temperature applications including kiln linings, ceramics, metal casting, forges, and brazing hearths, these bricks are the perfect choice for ensuring durability and efficiency in your heat-intensive projects.

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  5. Insulating Fire Bricks-VITCAS Grade 23 - 2300°F/ 1260°C
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    Insulating Fire Bricks-VITCAS Grade 23 - 2300°F/ 1260°C
    Special Price £2.76 £2.30 Regular Price £7.19 £5.99

    Vitcas Insulation Firebricks- Grade 23. Resistant to a high temperature of 1260°C / 2300°F. Dimensions: 230x114x76mm. Ideal for situations where heat storage properties are not desired, and for insulating in different refractories- ceramic kilns, furnaces, flues and other high temperature industrial equipment.

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  6. Ceramic Fibre Blanket 1260°C
    Rating:
    98%
    Ceramic Fibre Blanket 1260°C
    As low as £66.00 £55.00

    VITCAS Ceramic Fibre Blanket is resistant to a maximum service temperature of 1260°C (2300°F), with a density of 128kg/m³. Available in thicknesses of 13mm, 25mm, and 50mm, it is widely used in industries like petrochemical, steel, and ceramics. Ideal for insulation and furnace lining applications.

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  7. Insulating Fire Bricks-VITCAS Grade 28 -2800°F/ 1530°C
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    Insulating Fire Bricks-VITCAS Grade 28 -2800°F/ 1530°C
    Special Price £4.56 £3.80 Regular Price £9.59 £7.99

    Vitcas Insulation Firebricks- Grade 28. Dimensions: 230x114x76mm. Resistant to 1530°C / 2800°F. The lightweight insulating fire bricks can be used in different industrial applications such as in lining ceramic kilns and furnaces, in areas that are not in contact with molten materials, etc. 

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  8. CFA - Ceramic Fibre Adhesive-Vitcas
    Rating:
    97%
    CFA - Ceramic Fibre Adhesive-Vitcas
    As low as £11.99 £9.99

    CFA - Ceramic Fibre Adhesive is a high-temperature, air-setting cement that is specifically designed for use as an adhesive for sticking ceramic fibre materials to brickwork, pizza ovens, or metal. This silica-based adhesive is ideal for use in a wide range of applications where high temperatures are involved, and a strong, durable bond is required.

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  9. Silcas A-Refractory Mortar 1400°C
    Silcas A-Refractory Mortar 1400°C
    Special Price £35.99 £29.99 Regular Price £47.99 £39.99

    VITCAS Silcas A is a ready-mixed, air-setting refractory mortar that offers high-temperature resistance up to 1400°C / 2550°F. It is specifically designed for jointing and setting fire bricks, making it ideal for use in high-heat applications such as kilns, furnaces, and other industrial heating equipment.

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  10. Bio-Soluble Insulation Blanket 1200°C - 25mm per Metre
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    100%
    Bio-Soluble Insulation Blanket 1200°C - 25mm per Metre
    Special Price £14.39 £11.99 Regular Price £21.59 £17.99

    VITCAS Bio soluble fibre insulation blanket is designed to withstand temperatures up to 1200°C (2192°F). This insulation blanket presents a very low health risk due to its low bio-persistence and is safe to handle, making it suitable for both industrial and environmental standards. The blanket is 25 mm thick, 610 mm wide, with a density of 128 kg/m³.

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  11. Ceramic Fibre Blanket 1430°C
    Ceramic Fibre Blanket 1430°C
    As low as £90.00 £75.00

    VITCAS Ceramic Fibre Blanket. Resistant to 1430°C / 2600°F. Density of 128kg/m3. Available in thickness of 13mm, 25mm and 50mm. Can be used in ceramic kilns and in firing stoneware, in making of porcelain or bone china, and in stress relieving insulation, fire protection and power generation.

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  12. Insulating Fire Bricks-VITCAS Grade 30 -3000°F/ 1650°C
    Insulating Fire Bricks-VITCAS Grade 30 -3000°F/ 1650°C
    Special Price £5.88 £4.90 Regular Price £11.94 £9.95

    Vitcas Insulation Firebricks- Grade 30. Dimensions: 230x114x76mm. Rates at 1650°C / 3000°F. The lightweight insulation fire bricks can be used for industrial applications such as in hot blast stoves, as primary hot face linings, for back up insulation for kilns and furnaces and for flue insulation.

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  13. Refractory Castable Grade 1700°C
    Rating:
    97%
    Refractory Castable Grade 1700°C
    Special Price £56.39 £46.99 Regular Price £59.99 £49.99

    VITCAS Refractory Castable 1700 is ideal for industrial purposes and home foundry projects, particularly for lining a metal drum to create a small-scale crucible furnace. With its ability to withstand temperatures up to 1700°C (3090°F), it is even suitable for melting cast iron, ensuring excellent performance and durability in high-temperature applications.

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  14. Ceramic Fibre Board 1260°C-VITCAS Insulating Board
    Rating:
    93%
    Ceramic Fibre Board 1260°C-VITCAS Insulating Board
    As low as £66.00 £55.00

    Vitcas Ceramic Fibre Insulating Board. Resistant to 1260°C/ 2300°F. Dimensions: 1200x1000x25mm and 1200x1000x50mm. Has a low heat conductivity at high temperatures and resists high gas velocity, which makes it ideal for boiler ducts, for kiln linings in glass and ceramics and for stack lining.

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  15. VITCAS Ceramic Fibre Rigidiser
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    VITCAS Ceramic Fibre Rigidiser
    Special Price £35.99 £29.99 Regular Price £59.99 £49.99

    Vitcas Ceramic Fibre Rigidiser- a silicate compound. The rigidiser is used for coating the surfaces of ceramic fibre materials. These include the ones used in ceramic kilns, forges and those exposed to high velocity gases. The product acts as a hardener and sealant for these different ceramic fibre surfaces.

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  16. Vitcas Refractory Castable Grade 1600°C-Refractory Concrete
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    Vitcas Refractory Castable Grade 1600°C-Refractory Concrete
    Special Price £47.99 £39.99 Regular Price £53.99 £44.99

    Castable Refractory (Refractory Concrete) is used for repairs to boiler linings, boiler doors and incinerator linings. For use where localised temperatures are higher; for example in gas or oil burner blocks and where forced air is being used.

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  17. Ceramic Fibre Board 1430°C-VITCAS Insulating Board
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    Ceramic Fibre Board 1430°C-VITCAS Insulating Board
    As low as £90.00 £75.00

    VITCAS Ceramic Fibre Insulating Fibre Board is resistant to 1430°C / 2600°F. Dimensions: 1200x1000x25mm and 1200x1000x50mm. Due to its high heat resistance and lower thermal mass, heating/ cooling takes quicker and makes it ideal for glass slumping and ceramic kilns.

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  18. VITCAS Zircon Paint Coating 1750°C
    Rating:
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    VITCAS Zircon Paint Coating 1750°C
    Special Price £47.99 £39.99 Regular Price £83.99 £69.99

    VITCAS Zircon Refractory Paint Coating. It has a creamy consistency and can be applied directly. For spray application, it has to be thinned with water. Its maximum service temperature is of 1750°C / 3180°F. For use on furnaces, ladles, ceramic fibre linings and refractories in contact with molten alloys and glass.

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  19. Silcas M-White Refractory Mortar 1430°C
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    Silcas M-White Refractory Mortar 1430°C
    As low as £15.59 £12.99

    VITCAS Silcas M - Air Setting Ready Mixed Refractory Mortar for lightweight firebricks and insulation materials up to 1430°C / 2600°F. It is a white refractory mortar so may be used where white mortar is needed for visual and aesthetic purposes. Used for setting and jointing of bricks and other products.

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  20. Ceramic Fibre Blanket 1260°C -per Metre
    Rating:
    99%
    Ceramic Fibre Blanket 1260°C -per Metre
    As low as £11.99 £9.99

    VITCAS Ceramic Fibre Insulation Blanket offers low thermal conductivity and high tensile strength, withstanding temperatures up to 1260ºC (2300ºF). Available by the metre, it comes in 13mm and 25mm thicknesses, 610mm wide, with a density of 128kg/m³, ideal for high-temperature insulation.

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Kiln Linings

Refractory Materials for Kiln Linings – Insulation Solutions for Intermittent and Tunnel Kilns

Kiln linings are essential in both industrial and studio-scale ceramic production, providing thermal insulation, structural integrity, and energy efficiency. The choice of lining material depends on kiln type, firing temperature, production frequency, and sensitivity of the ware being fired.

Types of kilns and lining considerations

There are two primary types of kilns: intermittent and continuous.

  • Intermittent kilns are loaded with ceramic ware, fired, then cooled before unloading. These are common in small-scale and hobbyist setups, where flexibility is important, though energy efficiency is limited due to repeated thermal cycling.

  • Continuous kilns, including tunnel kilns, are typical in industrial environments. In this setup, only a central section is heated while the ware moves through on trolleys. Some designs use a moving heat source along a stationary ware line. These systems are more energy efficient but are less practical for small operations.

The kiln lining plays a key role in optimising thermal performance, reducing energy waste, and protecting the kiln shell from overheating.

Function and refractory materials of kiln linings

Kiln linings serve as thermal barriers, preventing excessive heat loss and maintaining stable internal temperatures. Several refractory materials are suitable for kiln lining, depending on the thermal mass and durability requirements:

  • Dense fire bricks and refractory mortar provide rugged, long-lasting protection and are often used in high-wear industrial kilns.

  • Insulation bricks (such as Grade 26) combined with Vitset 45 refractory mortar offer a lightweight, low thermal mass solution, ideal for faster heating and cooling cycles in small kilns.

  • Ceramic fibre modules or blankets, with excellent insulating properties and low heat storage, are widely used for lightweight linings and quick turnaround times.

  • Refractory castables may be used in custom kiln designs or areas requiring complex shapes or repairs.

Material properties and firing considerations

For best results, kiln lining materials should be:

  • Lightweight and low thermal mass, to reduce energy use and enable faster cooldown times (important for batch production)

  • Low in iron content, to avoid contamination of white or glazed ware with black or green spotting

  • Coated with zircon refractory paint, especially when ceramic fibre is used, to seal fibres and prevent fallout onto sensitive ceramic pieces

In tunnel kilns where temperature remains constant, dense clay fire bricks-such as those containing 42% alumina-are commonly used. These installations often do not require mortar due to their continuous firing environment.

To learn more about lining materials and kiln design, read our in-depth article on kiln linings.

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