Buildhub ThermoSet High-Alumina Refractory Cement 25kg

The Buildhub ThermoSet High-Alumina Refractory Cement is formulated specifically for applications where conventional Portland and blended cements fail due to the temperatures involved. With an alumina content exceeding 40% and a maximum service temperature rating of 1350°C, ThermoSet provides the high-temperature structural integrity that demanding heat-application environments require — from domestic pizza ovens and fireplaces to industrial kiln linings, forge hearths, and high-temperature flue assemblies.

Unlike Portland cements, which begin to decompose and lose strength above approximately 300°C as the calcium silicate hydrate binder progressively dehydrates, high-alumina cement retains structural integrity through a transformation to ceramic mineral phases that actually become more stable at elevated temperatures. ThermoSet achieves its rated maximum service temperature through careful selection of alumina source minerals and precision control of the grinding process to achieve the particle size distribution that maximizes high-temperature phase formation.

For domestic applications, ThermoSet is the professional choice for pizza oven construction and repair, inglenook and open fireplace fireback installation, wood-burning stove surround bedding mortars, and flue liner jointing. In industrial applications, it is used for kiln furniture bedding, furnace floor and wall linings, ladle linings, and any refractory construction requiring cement-bonded castables up to its rated service temperature.

ThermoSet should not be used in applications subject to sustained contact with water or high humidity prior to first heat curing — the product reaches its full refractory performance only after completing a controlled initial firing cycle detailed in the included technical guide. Buildhub supplies detailed curing schedule guidance for all primary application types with every bag.