Ceramics & Glass
Refractory solutions for ceramic production and glassworking processes - High-Temperature Materials for Kilns and Glass Furnaces
Vitcas offers a comprehensive range of high-temperature insulation and refractory materials tailored to the demanding needs of the ceramics and glass industries. These materials are engineered to withstand repeated thermal cycling and extreme temperatures found in kilns and glass melting or reheating furnaces.
Applications in the ceramics industry
In ceramic manufacturing, kilns must be constructed and insulated with materials that ensure thermal efficiency, minimise heat loss, and allow controlled cooling after firing. Vitcas products commonly used in kiln linings include Grade 26 insulation fire bricks, which are often paired with Vitset 45 refractory mortar for high-temperature bonding and sealing.
To enhance thermal performance and reduce the kiln's cooling time, ceramic fibre insulation materials-such as ceramic fibre boards and blankets-are widely applied. For added durability and to prevent airborne fibre release, these ceramic fibre linings are often coated with zircon-based refractory paint.
Applications in the glass industry
In glassblowing and hot glass working, a Glory Hole or reheat furnace is used to maintain the malleability of the glass during shaping. These furnaces operate at extremely high temperatures and require materials that offer both heat resistance and mechanical integrity.
Vitcas ceramic fibre blankets are suitable for insulating the Glory Hole structure, providing excellent thermal retention. For constructing or lining the furnace chamber, refractory castable rated to 1600°C is recommended due to its high mechanical strength and resistance to molten glass contact.
Typical applications
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Lining and insulating ceramic kilns for pottery, tiles, or technical ceramics
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Constructing and insulating reheat furnaces (Glory Holes) for glassblowing
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Enhancing energy efficiency and safety in high-temperature production environments
To explore the use of Vitcas materials in more detail, read our dedicated blog articles on ceramic kilns and glass applications.