A refractory mortar, Fondulit mortar is formulated with an alumina specialty binder and aggregate base that resists up to 1,300°C. This makes it ideal for refractory brick masonries such as barbecues, fireplaces, chimneys, open and closed hearths, as well as peri-refractory work, boilers and furnaces. Fondulit mortar must be used alone, without adding Portland cement.

In addition, Fondulit mortar is functional in cold temperatures (up to -10°C), lending itself well to winter projects and work at altitude. However, you must protect your mortar from frost for the first few hours after use. It is also suitable for seaside projects, hardening between tides, and harsh chemical environments (acids, chlorides, sulfates, etc.).