Document LgzL629bXdBn5wOMD1o09oYb3

J-M AGGREGATES AND FILLS ^ DESCRIPTION: Johns-ManviUelightweight aggregates and fills are available in a wide selection for temperatures through 2400F. Zelie L.W. and JM-2400 L.W. Aggregates may be mixed with calcium aluminate cement to form an insulating refractory concrete for various operating conditions. Sil-O-Cel C-3 may be mixed with cal cium aluminate or portland cement for lower tem perature conditions. By selection of the aggregate, an insulating refractory concrete can be made with the characteristics desired for constructing core, japanning and enameling ovens, foundations and bases of heated equipment, furnace doors, and many special shapes. In addition, all materials listed below may be used as fills for insulating ir regular spaces in high temperature equipment, making it possible to conserve heat where other forms of insulation cannot be economically in stalled. AVAILABLE TYPES Name JM-2400 L.W. Aggregate Zelie L.W. Aggregate Composition al. silicate al. silicate Temperature limit, F 2400 Approx density to which fills are normally packed, lbs per cu ft 50 Packaging 80-lb bags 2400 31 65-lb bags 58 Sil-O-Cel C-3 Sil-O-Cel Insulating Powder Sil-O-Cel Coarse Grade calcined, coarsegraded diatomaceous silica finely ground dia tomaceous silica similar to Sil-O-Cel Insulating Powder, but more coarsely ground 2000 1600 1600 31 50-lb bags 17 50-lb bags 22 50-lb bags ET-000091 8C43