Magnesia-based checker bricks and superstructure linings for float, container and specialty glass melting furnaces.
Glass furnaces run continuously for years between rebuilds — making lining longevity critical. The regenerator checker packing must survive high-temperature cycling, alkali vapour attack and the condensation of sodium and potassium compounds in the cooler layers, all while maintaining open flow channels for maximum heat recovery.
KONREF supplies magnesia-based checker bricks selected for high thermal efficiency, chemical stability in alkaline vapour environments, and dimensional consistency for structured packing without premature settlement.
High-MgO magnesia bricks for the upper, middle and lower regenerator checker, matched to the specific vapour and temperature profile at each level.
Magnesia bricks for regenerator sidewalls and dividing walls, resisting alkali penetration and thermal cycling through reversal.
Checker brick specifications optimised for the long campaigns and tight thermal management demanded by float glass production.
Magnesia checker grades suited to the shorter campaigns and more varied batch chemistry of container and tableware melting furnaces.
Custom magnesia grades for borosilicate, technical and insulation fibre glass furnaces where standard products do not fit the chemistry.
Gunning and patching materials for in-campaign maintenance of regenerator and port areas — formulated to bond with existing magnesia linings.
Submit regenerator geometry, temperature profile and campaign history for a grade-by-level specification from our engineering department.
