Henry Gallacher offers a broad range of high-temperature insulation boards widely utilised in thermal and electrical management roles. These boards are crafted from materials including calcium silicate, inorganic mineral fibre, Portland cement, mica, and ceramic fibre, combined with carefully selected binders and fillers. Typical uses include kiln and furnace linings, insulation for die cast moulds, and electrical insulation components, depending on the specific grade.
Our high-temperature insulation boards are available as standard sheets, custom-cut pieces, or precision-machined shapes produced using CNC machining capabilities. For tailored requirements, please provide samples or drawings for a detailed quotation.
See our range of materials below. If you need guidance selecting the right grade for your application, our technical sales team is ready to support you.
Additionally, we supply asbestos-free, high-temperature insulation blankets and papers, commonly used as refractory backup insulation or fabricated into gaskets as needed.
This lightweight, rigid insulation board is made from inorganic amorphous glass fibre (RCF) and excels in high-temperature environments. Ceramic fibre board delivers strong tensile strength and low thermal conductivity.
Temp: Up to +1260°C.
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Duratec-XP® is a calcium silicate technical ceramic reinforced with glass fibre, offering excellent thermal stability and electrical insulation. It is frequently machined for induction furnace parts and electrically insulating arc chutes.
Temp: Up to +600°C.
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Offered in three grades, FIREFLY Millboard serves diverse applications, including heat shields, glass-processing roller coverings, and high-temperature gaskets. This robust, rigid board has very low thermal conductivity.
Temp: Up to 1000 °C.
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Glastherm® HT is widely used to minimise heat loss in plastic, rubber, and zinc die-cast moulds. It offers high mechanical strength, low thermal conductivity, chemical resistance, and excellent electrical insulation. The material is easily machined with standard metal tools.
Temp: Up to +288°C.
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Industrial laminates are engineered for applications demanding high mechanical strength, minimal moisture absorption, and superior electrical insulation. They consist of fabric, paper, or glass fibres bonded with synthetic resins to form a durable, lightweight material that is straightforward to machine.
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Monalite® is available in two variants, M1 and M1A, both calcium silicate-based materials designed to contain and control molten aluminium flow. They offer excellent dimensional stability, strong resistance to thermal shock, and high machinability.
Temp: Up to +1000°C.
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Monolux® boards are produced from calcium silicate with specific fibre reinforcements, offered in two grades that vary in thermal conductivity and mechanical strength. This material is ideal for thermal insulation in industrial ovens, dryers, and as heat shields.
Temp: Up to +1000°C.
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Mica, also known as Muscotherm or Musco, is a durable high-temperature insulation material available in two grades: M (muscovite) and P (phlogopite). It is commonly used in thermal regulators, electrical components, and sheathings.
Temp: Up to +1000°C.
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Sindanyo® is a high-quality, rigid cement-based board with various fillers. The material is available in two grades and is commonly used in heat or electrical applications. It's easily machined.
Temp: Up +230°C (L21) and up to +700°C (H91).
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Thermalate® H330 is a thermoset glass fibre polyester composite offering low thermal conductivity, high compressive strength, and durability. Typically used in high-temp. plastic and rubber die-cast moulding.
Temp: Up to +288°C.
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