Refractory Cement, Mortar, and Castable: Which Form Fits the Job?
Choose the supplied form and installation method before comparing temperature ratings.
The words cement, mortar, and castable are sometimes used loosely in enquiries, but they describe different jobs. A mortar joins refractory units, a castable forms a monolithic section, and a refractory cement may be a binder or a formulated air setting product depending on the supplier's naming. The product's instructions decide how it should be used.
Start with geometry
For brickwork, ask about joint thickness, brick chemistry, and the mortar's grain size and setting mechanism. For a large poured lining, check aggregate size, placing method, anchor layout, water range, and cure. A powder advertised as cement should not automatically be poured as a castable or used in thick joints.
Compare the correct data
Temperature rating is only one field. Mortar needs jointing behaviour and compatibility; castable needs placed strength, density, and dimensional change. If an enquiry uses a trade name rather than a technical description, request the datasheet before choosing an equivalent.
Browse Royal's castables and mortars and refractory cements by intended application.