High Temperature block insulation
Description
Light weight material in two designs: High Temperature for temperatures 300-900°C and Super High Temperature (aka Super HT) for temperatures up to 1040°C.
It was produced in blocks and radiused sections for pipes.
Used in layered insulations with Caposite and 85% Magnesia. See Industrial combination insulation page.
The product was composed of 12% amosite asbestos, 44% basic magnesium carbonate and 44% diatomaceous earth.
Brands/products
- High Temperature (Hardie)
- Super High Temperature (H.T.) (Hardie)
- Hardie-BI Co
Years of production/use
HT: 1950-1967
Between 1964 and 1967 Hardie’s co-produced it with Bradford Insulation Industries and CSR.
Super HT: Late 1950s-1974
Between 1964 and 1974 Hardie’s co-produced it with Bradford Insulation Industries and CSR.
Residential uses
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Industrial uses
Advertised for boiler surfaces, furnaces, stoves, skelp mills, soaking pits and other industrial equipment operating at high temperatures.
Be aware
Designed to be hand-cut to shape/size on site, which exposed fibres.
